June 30: Heating Up Today, Scattered Thunderstorms to Start Weekend; Fireworks Forecast

June 30: Heating Up Today, Scattered Thunderstorms to Start Weekend; Fireworks Forecast

Today

Temperatures today will near 90 degrees in much of Southern Pennsylvania, with 80s all around. Sunny skies continuing for yet another day.

Friday

Isolated thunderstorms may develop Friday afternoon in northern and western areas, but there’s just a Marginal Risk of severe thunderstorms. Elsewhere, no rain is expected and temperatures will be well into the 90s south of I-80. Below is future radar for tomorrow.

Saturday

The focus for thunderstorms shifts east on Saturday into the eastern half of Pennsylvania, where a Slight Risk is up for mostly the damaging wind potential. Even still, 80% of the day will be dry in most areas. Below is the SPC map.

Sunday

Partly to mostly sunny skies return for Sunday with temperatures in the 80s.

Monday

The 4th will start sunny, followed by partly cloudy skies. We’re not expecting any rain, but it’ll likely be mostly cloudy around sunset. Here are temperatures around 8pm Monday.

Tuesday

Showers and thunderstorms are possible with temperatures in the 80s to low 90s near Philadelphia. Strong storms possible.

Wednesday

Mostly cloudy skies with a few thunderstorms possible in Southern Pennsylvania. Highs in the 80s.

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