CWS Forecast: Lewisburg, PA

The latter part of the week is looking to be tumultuous across the central Pennsylvania region, with hot and humid conditions both Thursday and Friday. The possibility of thunderstorms, some severe, exists both Thursday and Friday afternoon. Storms could contain damaging winds and small hail. Looking towards the weekend, temperatures will remain warm with dryer conditions on Saturday before another rainy system looks to invade on Sunday. As for the start of next work week, cooler temperatures are on the way, but not without more chances for precipitation.

Day One: Saturday, June 13th 2026

Hot and partly cloudy, with severe thunderstorms possible in the evening.

High: 96°F 

Low: 70°F 

Day Two: Sunday, June 14th 2026

Another round of severe thunderstorms possible in the evening.

High: 94°F 

Low: 70°F 

Day Three: Monday, June 15th 2026

Clear skies, remaining warm.

High: 88°F

Low: 62°F

Day Four: Tuesday, June 16th 2026

Severe thunderstorms possible yet again.

High: 91°

Low: 59°F

Day Five: Wednesday, June 17th 2026

Partly cloudy skies, the heat finally breaks.

High: 79°F

Low: 56°F

Last Updated on June 12, 2026 at 1:32 am