Heat Wave to Continue Through Next Week + 4th of July Forecast

Heat Wave to Continue Through Next Week + 4th of July Forecast

Today we experienced a taste of what’s to come in the next week, and possibly beyond. Temperatures in the 90s to near 100 degrees combined with dew points in the 70s will push the heat index into the 100s for many populated areas across the state.

Originally we thought the worst of the heat would be Sunday. While this remains true, the days following will not be much cooler. If you work outside we recommend stocking up on water bottles, the heat unfortunately isn’t going anywhere fast. Latest model trends extend the heat wave through the week and into next weekend.

Below are maximum heat index graphics for Monday and Tuesday.

The maximum heat index forecast doesn’t reflect what it will feel like the entire day, but at the day’s hottest point.

The moral of the story is drink lots of water. Let’s all hope our air conditioner can make it through the next week or two!

Now it’s time for the July 4th forecast. Since PA residents can now buy serious fireworks unlike previous years, this forecast is a little more important than before. Most of the state will be dry on Wednesday, however there is the chance of scattered thunderstorms in Northern PA.

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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