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Posted at 9:00 AM ET, 05/16/2009

Forecast: Warm & Humid, Storms Developing Late

By Jason Samenow

Gradual clearing Sunday

* PreaknessCast | NatCast | Great Falls Photography *


Today: Humid, chance of afternoon storms. Low 80s. | Tonight: Showers and t'storms. Near 60. | Tomorrow: Chance of morning showers, afternoon clearing. Near 70. | A Look Ahead


It's a HUGE weekend for outdoor activities with many college graduations, Nationals games, the Preakness (today), the Post Hunt (tomorrow), and, no doubt, a good number of weddings. The weather will itself be unsettled, and, due to the difficulty in know exactly when the rain will come and go, potentially unsettling for those of you need to be outside. On the plus side, although we may have to dodge showers and t'storms today and tomorrow morning, the bulk of the rain should come at night.

Radar: Latest D.C. area radar loop shows movement of precipitation over past two hours. Powered by HAMweather. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Today (Saturday): Fog and/or low clouds begin the day -- along with a few widely scattered showers. Some sunshine should emerge by mid-to-late morning. Temperatures will reach the sticky low 80s into the mid-afternoon. By mid-to-late afternoon, showers and thunderstorms are likely to develop west of town and gradually move into the metro area during the late afternoon to early evening. A few storms, especially north of D.C., could be strong. The chance of rain before 6 p.m. is about 50%. Confidence: Medium

Tonight: Showers and thunderstorms are likely. Some of the storms will produce locally heavy rain and lightning. Chance of rain is 70%, with amounts generally around 0.5" but with some locally heavier amounts. Lows will range from 60-65.Confidence: Medium-High

Keep reading for the forecast into early next week...

Tomorrow (Sunday): The front that brought the rain overnight will slowly push eastward. Showers may linger through late morning to around noon -- or perhaps the early afternoon east of town. But by mid-afternoon, most spots will likely experience clearing skies. This year's Post Hunt should be mostly dry. It will be cooler and less humid, with afternoon highs from 65-70. Confidence: Medium

Tomorrow Night: Quite a chilly, crisp night after Saturday's mugginess. Lows will drop down to the low 40s in the cooler suburbs to near 50 downtown. Confidence: Medium-High


Beautiful days kick off the week. High pressure builds in from the north giving us lots of sunshine and cool, dry Canadian air. Highs on Monday will be in the mid-to-upper 60s, warming up to the low-to-mid 70s Tuesday. Tuesday morning's lows will be very crisp, with upper 30s in the colder suburbs to the mid-40s downtown. Confidence: Medium-High

By Jason Samenow  | May 16, 2009; 9:00 AM ET
Categories:  Forecasts  
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Next: Strong Storms Possible; Mugginess Continues


Do those legs come with a house from Brambleton?

Also, any chance for snow this week? My joints are getting creaky. Might not make it too much longer.

I'll be here, under my umbrella, ella ella ey ey.

Monsieur Snow Monster
Washington, DC

Posted by: SnowMonsterDC | May 16, 2009 12:44 PM | Report abuse

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