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Washington DC weather for July 19: mostly cloudy and mild

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Brian's exclusive forecast for Washington DC:

Today: Mostly cloudy and cooler with a high in the mid to upper 70s.

Tonight: Mostly cloudy with areas of fog. The low will be in the upper 60s.

Sunday: Mostly cloudy and mild with a high in the upper 70s.

The extended forecast calls for clouds and sun on Monday with a low in the upper 60s and a high in the mid 80s. Clouds and sun on Tuesday with a low in the upper 60s and a high in the mid 80s. Warmer and more humid on Wednesday and Thursday with a chance of an afternoon thunderstorm. The lows will be around 70 and the highs will be in the upper 80s.

Weather Summary

High pressure off the coast of New England will create an onshore flow of air over the Mid Atlantic states today. This will result in considerable cloudiness and areas of morning fog, but most areas will remain dry throughout the day. Temperatures in the lower 70s this morning will only reach the mid to upper 70s by afternoon, perhaps a few degrees warmer if some cloud breaks develop. On Sunday we can expect much of the same with an easterly fetch providing morning fog and considerable cloudiness during the day. The upcoming week will feature gradually warmer and more humid conditions with a chance of afternoon or evening thunderstorms by next Wednesday.

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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