Mike Susko

Rounds of showers and thunderstorms are expected across south central Pennsylvania on Thursday, with localized heavy rain potentially causing flash flooding and isolated severe storms. A Flood Watch remains in effect until 4 p.m. for Adams, Cumberland, Franklin, Juniata, Mifflin and Perry counties, while the greatest severe-weather risk is along and east of I-81, particularly near York and Lancaster counties. Friday should be dry and sunnier, but scattered showers and thunderstorms may return over the weekend before cooler, less humid conditions arrive next week.

South-central Pennsylvania will see sunny, less humid conditions and highs in the mid-80s today. A cold front will bring increasing clouds, showers and isolated thunderstorms from late tonight through Thursday, along with higher humidity and cooler temperatures in the 70s. Friday should be dry and comfortable, while the weekend may bring additional showers and thunderstorms before cooler, drier conditions arrive next week.

Clouds are expected to clear across the Susquehanna Valley Tuesday night, followed by sunny and humid conditions with highs in the mid-80s Wednesday. Rain and a few thunderstorms will develop late Wednesday into Thursday as a cold front moves through, followed by more pleasant, cooler conditions Friday. Additional showers and thunderstorms are possible over the weekend, while temperatures should remain below average in the upper 70s to near 80 degrees early next week.

High pressure will bring lower humidity, decreasing clouds, and mostly sunny skies to south-central Pennsylvania, with highs in the mid-80s. Showers and isolated thunderstorms are expected from Wednesday night through Thursday as a cold front moves through, followed by cooler, more comfortable conditions into early next week. Weekend temperatures will remain near 80 degrees, with scattered showers and thunderstorms possible.

Partly sunny and humid conditions are expected to continue through Friday evening, with isolated showers fading near dusk and overnight lows in the upper 60s. Saturday is forecast to be mostly sunny and comfortable, with highs near 84 degrees. Scattered showers and thunderstorms are expected Sunday and Sunday night into Monday, bringing higher humidity and a risk of heavy rain and localized flash flooding, though severe weather is not currently forecast. Lower humidity is expected Tuesday before humidity and rain chances increase later in the week.

A slim chance of an isolated thunderstorm is expected this evening as a cold front moves through, with lingering wildfire smoke and gradually falling temperatures. Friday will be partly cloudy with lower humidity and a few possible showers, while Saturday is expected to be mostly sunny and comfortable. Humidity and storm chances will increase Sunday through Monday, followed by drier conditions Tuesday before a return to stickier weather and higher rain chances later in the week.

Warm, humid conditions will continue through Thursday, with isolated showers and thunderstorms possible late Wednesday and again as a cold front passes Thursday afternoon and evening. Humidity will decrease Friday and Saturday, bringing partly sunny skies and seasonable temperatures, before returning Sunday along with a chance of scattered thunderstorms. Hazy skies from wildfire smoke are expected, but surface air quality should not be affected.

Scattered showers and thunderstorms are possible overnight through Wednesday morning in south-central Pennsylvania, with patchy fog and lows near 70 degrees. More storms may develop Thursday as a cold front moves south, followed by drier, less humid weather Friday and Saturday. Additional shower and storm chances are expected Sunday and Monday before more comfortable conditions return early the following week.

The threat of showers and thunderstorms has ended across the Susquehanna Valley, though isolated activity remains possible west of the Susquehanna River. Muggy conditions, patchy fog and temperatures near 90 degrees are expected through Sunday and Monday. Scattered thunderstorms could develop late Monday, with damaging winds, frequent lightning, heavy rain and localized flash flooding as the main concerns. A cold front arriving Tuesday and Wednesday should bring cooler, less humid conditions, followed by several more comfortable days later in the week.

The strong thunderstorm threat is ending across the Susquehanna Valley after the severe thunderstorm watch was canceled. Isolated showers and storms may continue overnight, followed by another humid round of storms Saturday, with heavy rain and localized flash flooding the main risks. Sunday and Monday should be drier but remain hot, while a cold front Tuesday into Wednesday is expected to bring showers, lower temperatures and reduced humidity.

A severe thunderstorm warning affecting northwestern Lancaster County and north-central York County in south-central Pennsylvania expired after a storm near Maytown moved northeast. The National Weather Service reported radar-indicated wind gusts of up to 60 mph, heavy rainfall, potential flash flooding, and possible damage to roofs, siding, and trees. Residents were advised to remain indoors, stay away from windows, and avoid flooded roads.

The National Weather Service in State College issued a severe thunderstorm warning until 2:30 p.m. EDT for parts of Cumberland, Franklin and Fulton counties in south-central Pennsylvania. Storms were moving east at 10 mph with radar-indicated wind gusts up to 60 mph and quarter-size hail, posing risks to vehicles, roofs, siding and trees. Residents were advised to remain indoors and stay away from windows.

A severe thunderstorm watch is in effect until 9 p.m. Friday for ten counties in south-central Pennsylvania, with damaging winds, heavy tropical downpours, frequent lightning and isolated flash flooding possible. Storms are most likely from 4 to 8 p.m., while hot and humid conditions continue through Monday. A cold front expected Tuesday into Wednesday should bring storms, lower temperatures and less humidity, with more comfortable weather by the following weekend.

Scattered showers and thunderstorms are expected across the Susquehanna Valley Friday afternoon and evening, with a marginal risk of severe weather, damaging wind gusts, heavy rain and isolated flash flooding. Hot, humid conditions will continue through Monday, followed by somewhat cooler and less humid weather behind a cold front Tuesday into Wednesday.

Sultry heat and humidity will continue across south-central Pennsylvania, with temperatures near 90 degrees and heat indices in the mid-to-upper 90s, reaching around 100 degrees in Lebanon and Lancaster counties under a Heat Advisory. Scattered thunderstorms and tropical downpours are expected through Saturday, bringing risks of damaging wind gusts and isolated flash flooding. Drier conditions may arrive Sunday and Monday, while a cold front Tuesday into Wednesday should lower temperatures into the 80s and reduce humidity.

South-central Pennsylvania is expected to experience a warm, humid stretch with daily chances of showers and thunderstorms. Heavy rain is the primary threat, while a marginal risk of damaging wind gusts exists in the Susquehanna Valley on Thursday. Storms are also possible Friday and Saturday, followed by generally drier conditions Sunday and Monday. A cold front approaching Tuesday and Wednesday should bring cooler temperatures and lower humidity.

High pressure will bring mostly sunny, warm, and relatively dry conditions Saturday, followed by partly sunny weather Sunday with a slight chance of a shower. Humidity and the risk of showers and thunderstorms will increase Monday and Tuesday, although severe weather is not currently expected. Some storms may linger Wednesday before humidity drops slightly later in the week, with warm, seasonable temperatures continuing into early August.

South-central Pennsylvania will have dry, refreshing conditions on Friday, followed by mostly sunny and pleasant weather through the weekend. Humidity and the chance of showers and thunderstorms will increase Monday and Tuesday, with no severe weather currently expected. Conditions should become somewhat less humid later in the week before a warm, sticky end to July.

A fall-like air mass will bring clear skies, low humidity and comfortable temperatures to the Susquehanna Valley through Saturday, with highs mostly in the low-to-mid 80s. Humidity will return Sunday, followed by possible thunderstorms Sunday evening through Tuesday as a cold front approaches. Conditions will become slightly less humid Wednesday through Friday, though warm and sticky weather is expected to persist into late July, with another chance of showers and storms in early August.

Dry, pleasant weather continues in south central Pennsylvania through Saturday, with sunshine, low humidity and temperatures below seasonal averages. Storm chances return Sunday and increase early next week, with widespread showers and thunderstorms expected Tuesday and continued humid conditions into Thursday.

Lower humidity and below-average temperatures bring pleasant weather to South Central Pennsylvania, with a mix of sun and clouds today and mostly sunny conditions through Saturday. Rain and isolated thunderstorms may return Sunday as dew points rise, with additional showers early next week before sunshine and seasonable temperatures resume.

A tornado watch remains in effect for several Pennsylvania counties, though the severe weather threat is decreasing as storms move east. Periods of steady rain with embedded thunderstorms continue through sunset before tapering later in the evening. A cold front brings additional showers before temperatures fall to around 70 with patchy fog overnight. Wednesday starts humid with a chance of midday storms before drier, more comfortable conditions arrive. Thursday and Friday will be sunny and cooler than average. The weekend brings partly sunny weather, comfortable humidity Saturday, and a chance of storms Sunday, with more typical summer conditions expected early next week.

Strong to severe thunderstorms are expected across South Central Pennsylvania through the early evening, with the highest threat around dinnertime. Damaging wind gusts of 60–70 mph are the primary hazard, alongside risks of heavy rain, flash flooding, large hail, and isolated tornadoes. A tornado watch is in effect for several counties until 9 p.m., and the region is under an Enhanced Risk level from the Storm Prediction Center. Conditions improve after sunset as storms diminish, with a cold front bringing lower humidity by Wednesday evening and pleasant weather later in the week.

Humid conditions move in overnight ahead of an Alert Day on Tuesday, with the Susquehanna Valley under an Enhanced Risk for severe thunderstorms capable of damaging winds, flash flooding, hail, and isolated tornadoes. Storms may begin early in the morning with the main threat window between mid-afternoon and early evening. Showers taper off by Wednesday as temperatures remain slightly below seasonal norms, with mixed sun and clouds continuing through the week and additional storm chances returning early next week.

Wildfire smoke from Ontario and Minnesota is expected to create hazy skies and unhealthy air quality across Pennsylvania, leading to a Code Red alert Thursday and a Code Orange Friday. A heat wave continues with temperatures near or above the mid-90s and heat index values over 100 degrees. Conditions may briefly improve as a weak cold front arrives, with rain and thunderstorms possible over the weekend. Temperatures moderate to the mid-80s early next week, with another chance of storms Tuesday.

Near‑record heat is expected across Pennsylvania with highs near 100 degrees and heat advisories in effect. Canadian wildfire smoke is producing haze that may increase and potentially affect air quality later in the week. Temperatures begin to ease after Thursday as a weak cold front moves through, bringing chances for scattered thunderstorms Friday and Saturday. Weekend highs fall into the mid‑80s, and next week remains seasonable with periodic storm chances.

A heatwave brings temperatures in the mid-90s today across South Central Pennsylvania, with heat index values near or above 100 degrees prompting a Heat Advisory for several counties. The heat intensifies Wednesday, reaching 99 degrees and potentially tying a temperature record, with heat index values up to 104. Slight relief arrives Thursday and Friday as humidity decreases modestly, though temperatures remain in the mid-90s. Weekend highs fall to the mid-80s with scattered thunderstorm chances, and next week settles into seasonable mid-80s temperatures with periodic storm opportunities.

Warm and humid conditions persist overnight with fog redeveloping. Saturday brings partly to mostly cloudy skies and a chance of isolated afternoon thunderstorms as a cold front moves through. Sunday will be less humid with seasonable mid‑80s temperatures. Heat intensifies next week with highs reaching the low to mid‑90s from Tuesday through Thursday, potentially forming a heatwave, before easing to the upper 80s. Rain chances remain low until late week, when thunderstorms may return.

Scattered thunderstorms are expected across the Susquehanna Valley through early Friday evening with a marginal severe weather risk, including possible damaging winds and localized flooding. Conditions turn partly cloudy overnight with areas of fog. Saturday brings warm, humid weather with a chance of isolated afternoon storms as a cold front moves through. Sunday will be less humid with seasonable temperatures. Early next week temperatures rise into the upper 80s and 90s with low rain chances and the potential for a heatwave before cooling slightly toward week’s end.

Showers taper off Thursday night with lows near 70 and patchy fog possible. Another round of scattered showers and thunderstorms may develop Friday afternoon as a cold front approaches, bringing a marginal severe weather risk and potential localized flooding. The weekend turns drier with seasonable mid‑80s temperatures and lower humidity by Sunday. Heat builds next week with highs rising into the low 90s and the potential for a heatwave, with limited rain chances except for possible midweek thunderstorms.

Spotty showers may continue west of the Susquehanna River Tuesday night with patchy fog and humid conditions. Wednesday brings more sunshine but still a slight chance of isolated showers in Franklin, Adams, and Cumberland counties. Scattered thunderstorms return Thursday, mainly south of the Pennsylvania Turnpike, with a marginal risk of severe weather and potential gusty winds. Additional showers and storms are possible Friday as a cold front moves through. The weekend trends drier with seasonable temperatures, and early next week may bring a warming trend with highs near or above 90 degrees and another possible heat wave.

Cloudy conditions hold temperatures in the upper 70s to near 80, with a few showers possible mainly west of the Susquehanna River. Fog and a stray shower may develop overnight. Sunshine increases Wednesday, though spotty showers remain possible in Franklin, Adams, and Cumberland counties, while humidity persists. Scattered showers and thunderstorms are expected Thursday with a marginal severe weather risk in southern counties. Additional showers and storms may occur Friday as a cold front moves through. The weekend is mostly dry with isolated chances of storms, and next week brings warmer, mainly dry weather with temperatures possibly reaching 90 degrees by Tuesday.

A flood watch remains in effect for south-central Pennsylvania until early Tuesday as scattered storms may produce locally heavy rain and flash flooding, especially in vulnerable low-lying and poor‑drainage areas. Conditions gradually improve overnight with cooler, humid temperatures continuing into Tuesday. High pressure brings a drier Wednesday before storm chances rise again Thursday and Friday, with potential for strong thunderstorms. The weekend is expected to be mostly dry and warm, with additional rain chances returning early next week.

The National Weather Service uses four tags—base, considerable, destructive, and tornado possible—to classify severe thunderstorm warnings and indicate increasing levels of danger from wind, hail, and storm rotation. Base warnings denote standard severe criteria, considerable warnings highlight higher-impact winds or hail, and destructive warnings signal conditions similar to weak tornado damage and trigger Wireless Emergency Alerts. Tornado possible indicates rotating storms that have not met tornado warning thresholds. WGAL’s Storm Team uses color-coded polygons to display these categories and enhance situational awareness.

Extreme heat continues across the Susquehanna Valley with triple‑digit temperatures and high humidity pushing heat index values above 105 degrees. Several counties remain under an Extreme Heat Warning or Heat Advisory through Saturday. Isolated thunderstorms are possible but not expected to be widespread, though any that develop could produce damaging wind gusts and heavy rain. Independence Day will be very hot with highs in the upper 90s and a chance of late‑day storms that should weaken before fireworks. Scattered storms Sunday will ease temperatures slightly. Early next week brings cooler highs in the mid‑80s with lower humidity and continued chances for showers and thunderstorms.

A severe thunderstorm watch has been issued by the National Weather Service for numerous Pennsylvania counties until 11 p.m., alongside ongoing extreme heat across the Susquehanna Valley. Temperatures and heat index values exceed 100 degrees in many locations, with the potential for damaging winds from scattered thunderstorms today and Saturday. The hottest conditions are expected to ease after the weekend, with increased storm chances Sunday and cooler temperatures early next week.

An extreme heat warning remains in effect across the Susquehanna Valley as high temperatures and humidity push heat index values to 105–110 degrees, with some areas potentially reaching 102 degrees for a second consecutive day. Isolated thunderstorms may develop Friday and Saturday with a slight risk of damaging winds. Independence Day will stay hot, with highs in the upper 90s and a chance of afternoon storms before conditions improve for evening fireworks. Cooler temperatures and increased storm chances arrive Sunday, with a more noticeable cooldown into the mid‑80s early next week.

Temperatures in the Susquehanna Valley reached 102 degrees at Harrisburg International Airport, the region’s official climate site, marking the hottest day in 15 years. The National Weather Service confirmed the reading, noting the last comparable temperature occurred in 2011. While not a daily record for July 2, such extreme heat remains rare, having occurred only 15 times since 1888. Similar temperatures are expected Friday, with the potential for the region’s first back-to-back 102-degree days since 1999, and possibly the hottest day of the 21st century if temperatures hit 104 degrees. Continued heat and humidity raise risks for heat exhaustion and heat stroke, with safety guidance emphasized.

An extreme heat warning is in effect from Wednesday through Friday across South Central Pennsylvania, with temperatures near or above 100 degrees and heat index values reaching 105 to 110. Minimal nighttime cooling will prolong hazardous conditions. A heat advisory continues into Saturday, which will also be hot with a chance of scattered storms. Storm chances increase slightly Sunday as the heat dome breaks down, and early next week returns to more typical summer temperatures in the 80s with isolated pop‑up storms. Ongoing dry conditions remain a concern, with June ranking among the driest on record.