Weather Alert: Thunderstorms to Follow Near-Record Heat

Storm Team4 has declared Thursday a weather alert day

It might be a good day to stay inside: It's another day of near-record heat followed by thunderstorms that could be strong to severe.

Thunderstorms are expected in the afternoon and evening. Storm Team4 has declared Thursday a weather alert day.

Don't expect the thunderstorms to give a break from sweltering September heat. Temperatures will be above 90 degrees — with a heat index around 100.

All of today's record highs — 96 at Reagan National, 96 at BWI-Marshall and 95 at Dulles — could be tied or broken. 

Hot weather will fuel chances for afternoon storms. Forecasting models are a little unclear exactly when a storm could hit your neighborhood. Overall, there's a 50% chance of storms which are looking more likely in the evening.

Storms could be strong with damaging winds.

Friday is looking cloudy and rainy, but considerably cooler.


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There have officially been 55 days this year where the temperature exceeded 90 degrees — higher than the average of 36 days per year.

Stay with Storm Team4 and download the NBC Washington app for the latest weather alerts. 

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