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Washington DC weather for May 13: hot and humid on Tuesday

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Brian's exclusive forecast for Washington DC:

This afternoon: Mostly sunny and hot with a high in the mid to upper 80s, except a bit cooler near the bay.

Tonight: Mostly cloudy with a slight chance of a shower and areas of fog. Cooler with a low in the upper 50s.

Wednesday: Mostly cloudy and cooler with a high in the mid 70s.

Wednesday Night: Mostly cloudy with a chance of showers. The low will be in the mid 60s.

Thursday: Mostly cloudy and warm with a high in the upper 70s.

The extended forecast calls for showers and thunderstorms on Friday with a low in the low 60s and a high in the low 70s. Mostly sunny on Saturday and Sunday with lows in the upper 40s to lower 50s and highs in the upper 60s. Mostly sunny on Monday with a low in the upper 40s to lower 50s and a high in the upper 60s to lower 70s.

Weather Summary

Today feels more like the middle of summer than the middle of May with hot and humid conditions in Baltimore and Washington. Afternoon temperatures are in the mid to upper 80s across the region. The heat will be short-lived, however, as a backdoor cold front moves in a southwesterly direction during the overnight hours. Consequently, temperatures will fall overnight into the upper 50s to lower 60s along with clouds and areas of fog. An isolated shower is possible. As this front begins to lift back up to our north on Wednesday, and another cold front sweeps across the area later in the day, considerable cloudiness and showers can be expected on Wednesday along with cooler temperatures. This front may linger around the area on Thursday and Friday with additional showers and thundershowers. Looking ahead to this weekend, cool high pressure will become established over the Middle Atlantic region with abundant sunshine. Highs on Saturday will be in the lower 70s and highs on Sunday will be in the upper 60s to lower 70s. Lows by Sunday morning may drop into the upper 40s in outlying areas and lower 50s elsewhere.

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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