Heat advisory, chance for more storms in South-Central Pennsylvania
NOW THE IMPACT DAY FORECAST FROM THE WGAL NEWS EIGHT STORM TEAM. GOOD MORNING. WE HAVE TWO WEATHER IMPACTS TODAY. IT’S THE HEAT PLUS THE CHANCE OF STORMS THIS AFTERNOON. BUT THIS MORNING I WANTED TO ADDRESS THE FOG, ESPECIALLY IN LEBANON AND LANCASTER COUNTIES WHERE IT’S BEEN SET IN PRETTY THICK THIS MORNING. SO PLEASE BE MINDFUL IN THOSE TWO COUNTIES FOR THE LOWEST VISIBILITY IN THE SUSQUEHANNA VALLEY, VISIBILITY SHOULD IMPROVE, THOUGH WITHIN THE NEXT TWO HOURS. HERE’S THE HEAT ADVISORY IN EFFECT FOR THE COUNTIES IN ORANGE THAT STARTS AT 11:00 TODAY AND GOES UNTIL 8 P.M. FRIDAY. SO BACK TO BACK DAYS OF HIGH HEAT, HIGH HUMIDITY, MAKING IT FEEL LIKE 100 DEGREES EACH AFTERNOON. SO FOR TODAY, NOTICE OUR HIGH IS 90, BUT THE HEAT INDEX AT FEELS LIKE TEMPERATURES GOING TO BE IN THE UPPER 90S. I THINK TOMORROW WE DO GET TO THE 100 MARK BECAUSE OUR AIR TEMPERATURES ARE GOING TO BE A LITTLE BIT WARMER. SO TODAY, TOMORROW, THE WORST OF THE HEAT AND HUMIDITY. IN ADDITION, WE HAVE THE CHANCE FOR STORMS. OUR TIMING TODAY IS 3 P.M. TO 9 P.M. MOVING FROM WEST TO EAST. SO JUST LIKE YESTERDAY, WE’LL SEE SCATTERED THUNDERSTORMS THAT COULD PRODUCE DAMAGING WIND GUSTS, LARGE HAIL, HEAVY RAIN AND FREQUENT LIGHTNING DURING THE HEAT OF THE AFTERNOON INTO THE EARLY EVENING HOURS. HERE’S THE PREDICTOR SHOWING US THAT TIMING. IT’S FAIRLY QUIET THIS MORNING AND EVEN EARLY THIS AFTERNOON. BUT AFTER 3:00, THAT’S WHEN OUR WINDOW OF OPPORTUNITY OPENS FOR THESE STORMS TO ROLL INTO THE SUSQUEHANNA VALLEY. HERE WE ARE, RIGHT DURING THE EVENING RUSH WITH THE STORMS OVERHEAD, AND THEY EXIT OFF TO THE EAST AROUND SUNSET TODAY. NEWS EIGHT STORM TEAM FORECAST DETAILS 70 THIS MORNING, BUT 90 THIS AFTERNOON AND FEELING LIKE THE UPPER 90S STORMS STILL AROUND THIS EVENING. WARM MUGGINESS WE’RE NOT GOING TO GET RID OF THAT AT ALL FOR TONIGHT, A REPEAT PERFORMANCE. WE HAVE 70S FOR LOWS. WE SEE SOME FOG FORMING UP. IT’S GOING TO BE PARTLY CLOUDY, WARM AND MUGGY. AND TOMORROW STORMS AND HEAT. THE TWO MAJOR WEATHER PLAYERS ON THE TABLE HERE. IT’S GOING TO FEEL LIKE 100 DEGREES TOMORROW WITH PARTLY SUNNY SKIES AND THOSE SCATTERED STORMS AGAIN IN THE AFTERNOON AND EVENING. RIGHT NOW WE HAVE TEMPERATURES WELL INTO THE 70S AT 74 IN HARRISBURG, 72 IN LEWISTOWN, 75 IN GETTYSBURG. AND WHEN YOU FACTOR IN THE HIGH HUMIDITY, IT FEELS DOWNRIGHT TROPICAL. LOOK AT THESE DEW POINTS, 70. THOSE ARE THE HIGHEST DEW POINTS WE’VE SEEN THIS YEAR. SO THAT SHOULD TELL YOU SOMETHING ABOUT HOW HOT IT’S GOING TO FEEL LATER TODAY. WE ARE IN THE STEAMY ZONE TODAY AND TOMORROW. BUT CHECK OUT SATURDAY. HERE’S THE GOOD NEWS IF YOU’RE NOT A FAN OF THE HUMIDITY, I THINK YOU WILL LIKE THAT HUMIDITY DROP COME THE WEEKEND. SUNDAY TURNS A LITTLE BIT STICKIER, BUT THEN HUMIDITY DROPS RIGHT BEHIND ANOTHER COLD FRONT EARLY NEXT WEEK. HERE’S THE WEATHER AND HEALTH UPDATE TODAY. OUR UV INDEX. OUT, IS GOING TO BE HIGH. I SEE A BURN TIME OF 25 MINUTES. AIR QUALITY IS MODERATE TODAY, AND OUR TREE AND GRASS POLLEN STILL AT MODERATE LEVELS. NOW OVERNIGHT WE HAD A CLUSTER OF SHOWERS MOVING THROUGH. MOST OF THOSE HAVE DISSIPATED OVER LANCASTER COUNTY. IF YOU DO SEE WET GROUND, THAT’S WHERE IT CAME FROM. WE HAD SOME STORMS IN THE MIDWEST OVERNIGHT THAT ROLLED INTO THE SUSQUEHANNA VALLEY, BUT NOW IT’S DRY AND I THINK IT’S GOING TO BE DRY FOR SEVERAL HOURS. IF YOU WANT TO DO ANYTHING OUTDOORS, YOU SHOULD HAVE DRY WEATHER THROUGH ABOUT MID AFTERNOON BEFORE THESE STORMS START TO BLOSSOM AGAIN. IT’S GOING TO BE A WET EVENING COMMUTE FOR SOME OF THE AREA. THEN THOSE STORMS MOVE OFF TO OUR EAST TONIGHT. TOMORROW WE START OUT DRY AND IT’S A RINSE AND REPEAT. SAME FORECAST. FIRING UP THOSE STORMS IN THE AFTERNOON AND IN THE EVENING AHEAD OF A COLD FRONT. SO THERE’S THE FRONT THAT WIPES AWAY THE HUMIDITY FOR SATURDAY. COULD BE A NICE DAY. IT’S GOING TO BE WARM. HIGHS WILL BE IN THE UPPER 80S, BUT THE HUMIDITY WILL REMAIN AT BAY. HERE’S A LOOK AT THE TEN DAY FORECAST. OUR HIGH IS 88 ON SATURDAY FLAG DAY ON SUNDAY WE HAVE 86 WITH INCREASING CLOUDS AND A CHANCE FOR SOME SHOWERS AND THUNDERSTORMS LATE IN THE DAY. MONDAY LOOKS MORE COMFORTABLE WITH A HIGH OF 80 SEASONABLE TEMPERATURES THERE. MAYBE A STRAY SHOWER OR THUNDERSTORM ON TUESDAY AND ANOTHER CHANCE NEXT THURSDAY. THE W
Heat advisory, chance for more storms in South-Central Pennsylvania
Updated: 8:42 AM EDT Jun 11, 2026
South-Central Pennsylvania will face another hot, humid stretch today and Friday, with a heat advisory in effect from 11 a.m. Thursday through 8 p.m. Friday for Adams, Cumberland, Dauphin, Lancaster, Lebanon and York counties.There is also a chance for severe weather Thursday and Friday, making both of them Impact Days.Heat and humidity build todayMorning clouds and patchy fog will give way to partly sunny skies.Highs will reach near 90 degrees.Humidity will make it feel close to 100 degrees at times.Storm chances this afternoon and eveningScattered thunderstorms are possible between 3 p.m. and 9 p.m.Some storms could turn strong to severe.Main threats:Damaging wind gustsLarge hailHeavy rainFrequent lightningMuggy night aheadPatchy fog may develop overnight.Lows will stay warm in the low 70s.Another hot, stormy day FridayFriday will bring partly sunny skies, steamy humidity and highs near 92 degrees.That would tie the record high set in 2017.It will feel close to 100 degrees again.Friday storm threatScattered storms are expected Friday afternoon and evening.Some storms may be strong to severe.Hazards include:Damaging wind gustsLarge hailHeavy rainIsolated flooding in spots that already saw heavy rain earlier this weekHeat safety remindersTake frequent breaks if working outdoors.Drink plenty of water.Wear loose-fitting, light-colored clothing.Check on neighbors and pets.Check live conditions on our Sky CamsSOUTH-CENTRAL PA WEATHER RESOURCES: INTERACTIVE RADAR | ACTIVE WEATHER ALERTS | CURRENT CONDITIONS | HOURLY FORECAST | 10-DAY FORECAST | WEEKEND FORECAST | MAP ROOM | DOWNLOAD THE APP | WEATHER EMAILS
South-Central Pennsylvania will face another hot, humid stretch today and Friday, with a heat advisory in effect from 11 a.m. Thursday through 8 p.m. Friday for Adams, Cumberland, Dauphin, Lancaster, Lebanon and York counties.
There is also a chance for severe weather Thursday and Friday, making both of them Impact Days.
Heat and humidity build today
Morning clouds and patchy fog will give way to partly sunny skies.Highs will reach near 90 degrees.Humidity will make it feel close to 100 degrees at times.
Storm chances this afternoon and eveningScattered thunderstorms are possible between 3 p.m. and 9 p.m.Some storms could turn strong to severe.Main threats:Damaging wind gustsLarge hailHeavy rainFrequent lightningMuggy night aheadPatchy fog may develop overnight.Lows will stay warm in the low 70s.Another hot, stormy day Friday
Friday will bring partly sunny skies, steamy humidity and highs near 92 degrees.That would tie the record high set in 2017.It will feel close to 100 degrees again.
Friday storm threatScattered storms are expected Friday afternoon and evening.Some storms may be strong to severe.Hazards include:Damaging wind gustsLarge hailHeavy rainIsolated flooding in spots that already saw heavy rain earlier this weekHeat safety remindersTake frequent breaks if working outdoors.Drink plenty of water.Wear loose-fitting, light-colored clothing.Check on neighbors and pets.Check live conditions on our Sky Cams
SOUTH-CENTRAL PA WEATHER RESOURCES: INTERACTIVE RADAR | ACTIVE WEATHER ALERTS | CURRENT CONDITIONS | HOURLY FORECAST | 10-DAY FORECAST | WEEKEND FORECAST | MAP ROOM | DOWNLOAD THE APP | WEATHER EMAILS