Scattered Thunderstorms Today in Eastern Half of PA, Followed By Heat Wave & Humidity

Scattered Thunderstorms Today in Eastern Half of PA, Followed By Heat Wave & Humidity

The eastern half of the state has been upgraded to a Slight Risk for severe thunderstorms late this afternoon and evening. These storms will be scattered as they move east-northeast. The main threat is wind gusts of 40-60mph.

Storms will develop mainly in South Central PA around 3-4pm, with a few pop-up cells possible in the Endless Mountains and Mid-Susquehanna Valley. From there, they’ll move east-northeast into Southeast PA and possibly the Southern Poconos both around 5-7pm. Philadelphia may not be done with these storms until 8-9pm.

See future radar for today here:

After this, the heat finally sets in for a while. Below are the heat index values and Wednesday and Thursday.

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Josh Adams is the founder and lead forecaster of Pennsylvania Weather Action, a regional forecasting site he launched in 2015. With over a decade of experience analyzing weather patterns across Pennsylvania, his forecasts have reached millions of readers throughout the state. Josh specializes in Pennsylvania’s complex microclimates and terrain-driven weather patterns, providing detailed coverage of severe thunderstorms, winter storms, and flooding events. His forecasting focuses on delivering precise, timely information to help Pennsylvanians stay informed and prepared during impactful weather. Last Updated: March 10, 2026