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Washington DC weather for April 21: increasing clouds with showers on Tuesday

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Brian's exclusive forecast for Washington DC:

Tonight: Mostly clear with a low in the mid to upper 40s.

Tuesday: Clouds and sun early, then more clouds with a few showers. The high will be in the lower 70s.

Tuesday Night: Evening showers, then clearing overnight with a low in the lower 50s.

Wednesday: Mostly sunny and cooler with a high around 60.

The extended forecast calls for sunshine on Thursday with a low in the lower 40s and a high in the lower 60s. Clouds and sun on Friday with a low in the mid to upper 40s and a high in the upper 60s to lower 70s. Mostly sunny on Saturday with a low in the lower to middle 50s and a high in the upper 60s to lower 70s. Mostly sunny on Sunday. Cooler with a low in the mid to upper 40s and a high in the lower 60s.

Weather Summary

A cold front is expected to move from west to east across the region on Tuesday and produce more cloudiness along with a chance of a few rain showers. Warm air rushing northward in advance of the frontal passage will allow temperatures to rise into the upper 60s to lower 70s during the afternoon. As the front moves through the region, clouds and showers will become more widespread. An isolated thundershower is possible, but no severe weather is expected. As the front clears the area on Wednesday, sunshine will return cooler temperatures and breezy conditions as cooler and drier air moves in from the northwest. Highs on Wednesday will be about 10 degrees cooler than Tuesday's highs with afternoon readings only in the lower 60s. A sunny and seasonable day is expected on Thursday with lows in the 40s and highs in the 60s.

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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