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Washington DC weather for August 21: clouds and sun with thundershowers

Brian's exclusive forecast for Washington DC:

This evening: Mostly cloudy with scattered showers and thunder. The low will be around 70.

Friday: Warm and humid with a thunderstorm possible, mainly in the afternoon. The high will be in the mid 80s.

Friday Night: Scattered showers and thunder. The low will be in the mid 60s.

Saturday: Clouds and sun with scattered showers. The high will be in the upper 70s.

The extended outlook calls for clouds and sun on Sunday with a shower possible. The low will be in the low 60s and the high will be in the upper 70s. Mostly sunny on Monday and Tuesday with a low in the upper 50s to lower 60s and a high in the upper 70s to lower 80s. Clouds and sun on Wednesday with a thundershower possible. The low will be in the upper 60s and the high will be in the mid 80s.

Weather Summary

The weather over the past couple of days has been warm and humid with veiled sunshine as cloudiness persists due to a stationary front that is hovering over the Middle Atlantic states. Some locations have experienced thunderstorms with heavy downpours, whereas other spots have not received a drop of rain. This front will continue to impact the region on Friday with warm and humid conditions along with scattered thundershowers. The stationary front will be pushed to the south over the weekend and into next week as high pressure builds down from New England. This will result in increasing sunshine, slightly cooler temperatures, and lower humidity.

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, 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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