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Posted at 5:00 AM ET, 10/16/2008

Forecast: Coolest Weather of Season On Its Way

By Josh Larson

Our recent remarkable warmth, (temperatures have averaged nearly 10 degrees warmer than normal over the past week), will linger for one more day -- today. But a cold front pushing through later today will bring this warmth to an abrupt end by Friday. I see much cooler weather for the area for Friday into the weekend, along with low chances of precipitation. Heaters may need to come on, as for the first time this season we'll likely see temperatures in the 40s downtown and in the 30s in the cooler suburbs.

TODAY (THURSDAY)

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

Mostly cloudy; shower? Low 80s Despite mostly cloudy skies, warm air rushing north ahead of an approaching cold front will allow highs to rise into the low 80s today. Scattered showers cannot be ruled out (20% chance), but much of the area should remain dry throughout most of the day.

A stray shower is possible this evening, with mostly cloudy skies lingering, and overnight lows dropping to the mid 50s.

Confidence: Medium

Keep reading for the forecast through the beginning of next week as well as the SkinsCast for this Sunday's game against the Browns and UnitedCast for tonight's game.

TOMORROW (FRIDAY)

Mostly sunny. Low 60s. As high pressure builds back into the area behind the cold front, Friday will serve up abundant sunshine along with dramatically cooler temperatures 20 degrees lower than today's. That means afternoon highs will be in the low 60s in most spots though a NW breeze of 10 mph may make it feel even cooler -- especially in the shade.

A jacket or sweater, depending your persuasion, is definitely advised Friday night since mostly clear skies will foster the coolest readings of the season yet: mid 40s downtown, upper 30s to near 40 for the cooler 'burbs.

A LOOK AHEAD

sunset_web.jpg
Tuesday's sunset. By Capital Weather Gang photographer Kevin Ambrose.

We'll have a decidedly fall-like weekend on tap (perfect, perhaps, for picking pumpkins?) thanks to strong high pressure overhead.

On Saturday we'll see plenty of sunshine with cool afternoon highs only in the low 60s. Clear and cool once again Saturday night, with overnight lows ranging from the upper 30s in places like Vienna and Gaithersburg to the mid 40s downtown. Confidence: High

Similar conditions can be expected on Sunday, though temperatures will be a few degrees warmer during both the day and nighttime. I think we'll see mostly sunny skies with highs in the mid to upper 60s and overnight lows ranging from the mid 40s in the suburbs to near 50 downtown. Confidence: Medium-High

As you head back to work on Monday, milder weather returns; whether or not that's a good thing on back-to-work Monday, I'll let you decide. Mostly sunny skies will prevail with somewhat milder afternoon highs in the low 70s and overnight lows ranging from the mid 40s to the low 50s. Confidence: Medium-High

By Josh Larson  | October 16, 2008; 5:00 AM ET
Categories:  Forecasts  
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Next: Fall's First Colors Spread Through Washington

Comments

Any guesses on what the wind might be like over the weekend?

Posted by: ~sg | October 16, 2008 8:54 AM | Report abuse

~sg, wind on Saturday looks to be more of an issue than on Sunday. I expect northerly winds of 10-15mph on Saturday, perhaps gusting at times to near 20mph. On Sunday, winds will be much lighter -- more like in the 5mph range -- from the south or southeast. Hope that helps.

Posted by: Josh, Capital Weather Gang | October 16, 2008 12:22 PM | Report abuse

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