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Washington DC weather for June 20: clouds on Saturday give way to sunny Sunday

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Brian's exclusive forecast for Washington DC:

Overnight: Mostly clear and pleasant with a low in the lower 60s.

Saturday: Considerable cloudiness with a shower possible. Mild with a high in the mid 70s.

Saturday Night: Variable cloudiness with a shower possible. The low will be in the mid 60s.

Sunday: Becoming mostly sunny. The high will be in the lower 80s.

The extended forecast calls for a mostly sunny sky on Monday with a low in the lower 60s and a high in the lower 80s. Mostly sunny and warm on Tuesday with a low in the mid 60s and a high in the mid 80s. Clouds and sun on Wednesday with a low in the upper 60s and a high in the mid to upper 80s. Clouds and sun on Thursday with a thunderstorm possible. The low will be in the upper 60s and the high will be in the upper 80s. Clouds and sun on Friday with a thunderstorm possible. The low will be in the upper 60s and the high will be in the mid 80s.

Weather Summary

A cold front moved to our south overnight and high pressure continued to build over central Maryland today. The result was abundant sunshine and warm temperatures with highs in the lower 80s. However, humidity levels were quite low with dew point values only in the upper 40s to lower 50s. Consequently, it was a comfortable mid-June afternoon with a deep blue sky and cirrus clouds. To our south, a stalled frontal system produced much more humid conditions in central Virginia. Low pressure will move along the front and bring showers and thundershowers to Virginia on Sunday. Warm, moist air overrunning relatively cool, dry air at the surface over Baltimore and Washington will allow for the development of considerable cloudiness on Sunday along with a few rain showers. Temperatures will be cool for the official start to the summer season with highs only in the lower to middle 70s. Warmer and more humid weather will return next week.

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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