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Washington DC weather for September 1: mostly sunny and warm

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Brian's exclusive forecast for Washington DC:

This afternoon: Clouds and sun with a slight chance of a thunderstorm. The high will be in the upper 80s to near 90.

Tonight: A slight chance of a thundershower, then mostly cloudy overnight with a low in the lower 70s.

Tuesday: Hot and humid with a chance of an afternoon or evening thunderstorm. The high will be near 90.

Tuesday Night: Showers and thunderstorms, then cloudy overnight. The low will be in the upper 60s.

Wednesday: Becoming mostly sunny and warm, but not as humid. The high will be in the mid to upper 80s.

The extended outlook calls for mostly sunny and warm conditions on Thursday, Friday, and Saturday with lows in the mid to upper 60s and highs in the mid 80s.

Weather Summary

High pressure will produce warm and humid conditions in the Middle Atlantic region through Tuesday. A cold front will move across the state on Tuesday evening, with showers and thunderstorms likely Tuesday afternoon through Tuesday night. In the wake of the cold front, slightly cooler and less humid air will overspread the region on Wednesday, Thursday, and Friday with daytime highs in the 80s.

Regional Weather Information

Baltimore average lows and highs

Washington average lows and highs

National Weather Service daily weather discussion

Baltimore/Washington National Weather Service

Chesapeake Bay marine forecast

Mid-Atlantic radar loop

For more weather updates, please visit my web site www.chesapeakebayweather.com, my Chesapeake Bay Weather page on Facebook, and if you're heading to Ocean City feel free to check out my Ocean City MD Weather page on Facebook. You can also follow me on Twitter @chesbayweather.

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