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Posted at 3:15 PM ET, 07/29/2008

CommuteCast: Humidity's Unwelcome Return

By Ian Livingston

Hot and humid Wednesday; storms late?

Current D.C. area temperatures, courtesy Weather Bonk. Map by Google. Hover over and click temperatures for more info. Click and hold on map to pan. Refresh page to update.

Mostly sunny skies today have allowed temperatures to rise into the upper 80s to near 90 degrees across the region this afternoon. A wind coming from the south and southeast is helping pump up the humidity across the area, and the comfortable conditions of yesterday are quickly disappearing. Skies should remain mostly clear through the evening.

Tonight: If you left the windows open last night for some fresh air they will probably go back into the "keep humidity out" closed position tonight as the A/C preps for another workout. Lows should fall to the upper 60s in the suburbs and low 70s in the city under partly cloudy skies and a light south or southeast wind.

Tomorrow: Wednesday is shaping up to be one of those uncomfortable late-July days that many of us despise. A sultry morning will lead to afternoon temperatures reaching the low and mid 90s. These readings, combined with high dewpoints, will bring heat indices close to 100 degrees across portions of the area. Temporary relief from the heat could come in the form of scattered late day showers and thunderstorms, some of which may be strong.

See NatCast for tonight's game, and Matt's full forecast through the weekend.

By Ian Livingston  | July 29, 2008; 3:15 PM ET
Categories:  Forecasts  
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Next: NatCast: Muggy, Maybe a T-storm

Comments

Update:

Current, 90F, 29.95, falling. There seem to be a few thunderstorms SE of us in St. Mary's County, MD.

Most big news stories this afternoon don't have to do with weather. There has been a 5.4 Richter earthquake in the L. A. area epicentered in San Bernardino County. Little damage but some buidings have been evacuated, due to possible aftershocks.

Posted by: El Bombo | July 29, 2008 5:28 PM | Report abuse

Highs of 90+ at 2 out of 3 major reporting locations:

National 91
Dulles 90
BWI 88

Posted by: CapitalClimate | July 29, 2008 5:36 PM | Report abuse

21st day 90 or greater at National. NBC introducing possible 100 degree readings into extended, even as some signals backed off extreme heat today.

Posted by: Ian, Capital Weather Gang | July 29, 2008 6:24 PM | Report abuse

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