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Posted at 11:20 AM ET, 08/ 6/2008

Forecast: Humidity Going on Vacation

By Dan Stillman

Shower and storm chances slim through weekend

While high gas prices and airfares have many people staying home this August, humidity is about to take an unusual late-summer vacation. By later today, the dew point (which measures the amount of moisture in the air) should dip down to a comfy 60 degrees or so -- and stay around there through the weekend. Temperatures are on a downward trend, too, with shower and storm chances minimal over the next several days.


Becoming mostly sunny. Breezy. Decreasing humidity. Near 90. The morning will start out on the muggy side. But as high temperatures rise toward 90 and skies become mostly sunny, humidity should gradually decrease on a breeze from the northwest, gusting to 20-25 mph at times. An isolated shower or thunderstorm is possible during the afternoon or evening, mainly south of D.C. Most folks should stay dry.

Overnight, partly cloudy with lows dropping to the low 70s downtown, mid-to-upper 60s in the burbs.

Keep reading for the forecast through the weekend. Also, will you be our Weather Checker? Note: Comments will not be possible until some time later today due to system maintenance.


Partly sunny. Low humidity. Mid-to-upper 80s. This is pretty nice stuff for August: Low humidity and high temperatures that are likely to come up short of the 90-degree mark. Still, an isolated shower or thunderstorm can't be ruled out for the late afternoon or evening. But many spots will probably remain rain-free.

Overnight, partly cloudy with lows in the upper 60s to near 70 downtown, mid 60s in the burbs.


For Friday, perfection could be tainted by periods of cloud over and that pesky slight chance (only about 20%) of a late-afternoon or evening shower/thunderstorm. But all in all, it'll be hard to complain about low humidity, highs in the mid 80s and some times of sun. Confidence: Medium-High

I'm not ready to nix the slight chance (20%) of a stray afternoon or evening shower/thunderstorm this weekend. But let's not obsess about it, ok? Instead, focus on the fact that the vast majority of the weekend should be plenty pleasant, with partly sunny skies, low humidity and highs in the mid 80s (some spots may only make the low 80s). Confidence: Medium-High

By Dan Stillman  | August 6, 2008; 11:20 AM ET
Categories:  Forecasts  
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Looks like comments are working again folks! Slow, but working.

Posted by: Dan, Capital Weather Gang | August 6, 2008 3:22 PM | Report abuse

Time stamp seems off...where did DC summer go? This has been for all intents and purposes an "easy" summer to take after last year's four months on the face of the sun.

Posted by: Dulles ARC | August 6, 2008 3:54 PM | Report abuse

Actually, there were the same number of 90°+ days through July as there were last year, and that was only 1 less than average.

Posted by: CapitalClimate | August 6, 2008 6:14 PM | Report abuse

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