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Washington DC weather for April 18: a sunny weekend expected

National Weather Service forecast map
National Weather Service forecast map
Map courtesy National Weather Service

Brian's exclusive forecast for Washington DC:

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

Saturday: A few clouds early, then more sunshine with a high in the mid 60s.

Saturday Night: Mostly clear with a low in the upper 40s to lower 50s.

Sunday: Mostly sunny and pleasant with a high in the mid to upper 60s.

The extended forecast calls for clouds and sun on Monday with a low around 50 and a high in the mid to upper 60s. Mostly cloudy on Tuesday with scattered rain showers. The low will be in the lower 50s and the high will be in the lower 70s. Mostly sunny on Wednesday with a low in the lower 50s and a high in the mid 60s. Mostly sunny on Thursday with a low in the lower 50s and a high in the upper 60s.

Weather Summary

High pressure centered over New England will influence our weather in Washington and Baltimore during the overnight hours. With a clear sky and light winds, thermometer readings will fall back into the mid and upper 40s by morning. The High will move offshore on Saturday. Meanwhile, an area of low pressure will impact the southeast states with clouds and rainfall over the weekend. At this time, the low is expected to stay far enough to our south to keep precipitation confined to North Carolina and points south. Another area of high pressure will build over the region on Saturday night and Sunday. As this high moves offshore on Sunday, a southerly flow around the center of the high will enable highs to reach the upper 60s. After a mostly sunny day on Monday, clouds and rain moves into the region on Tuesday as a cold front approaches the area from the west.

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.