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Posted at 5:00 AM ET, 08/31/2009

Forecast: A Wonderful Week Ahead of Weather

By Jason Samenow

* Radar, Temps, & More: Weather Wall | Hurricane Tracking Station *
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* Later: Minimizing the Impacts of Hotter Augusts *


Today: Variably cloudy. 73-77. | Tonight: Partly cloudy, 55-61. | Tomorrow: Sun and clouds. 75-79. | A Look Ahead


Remember the stunningly good weather we enjoyed in early-mid July -- the modestly warm days and refreshingly cool nights? The same weather pattern (a dip in the jet stream over the East) that brought us that high-humidity-free stretch returns this week. Many days won't escape the 70s and many of us will have nighttime lows in the 50s. Air conditioning? Forget about it. The only downside to this weather will be little to no rain, and many spots could use some.

Clouds: Latest mid-Atlantic infrared satellite loop, courtesy Unisys. Click here to expand. Refresh page to update. See more maps on our Weather Wall

Today (Monday): Thank you for blowing. Yesterday, CWG's Brian Jackson told us to point fans to the east to blow away a front that was threatening to bring us showers. Due to our collective efforts no doubt, the front will stay far enough east so that most of the area is dry.

However, the front will be close enough to drape considerable cloud cover east of I-95 and some showers are possible mainly south and east of a line from Fredericksburg, Va. to Rehoboth, De. Sky conditions for the rest of us should start off mostly cloudy, with sunshine increasing as the day wears on, particularly the farther you are to the north and west. Highs will be in the mid-70s. Confidence: Medium-High

Tonight: Very, very nice. Though there may be a few clouds around -- especially to the southeast --, the Canadian air mass building into the region will help cool temperatures to the mid-50s in the cooler suburbs to near 60 downtown. Confidence: Medium-High

Keep reading for the forecast through the weekend....

Tomorrow (Tuesday): What a day! Bright sunshine returns to the entire area as high pressure takes firm control. A few fair weather cumulus clouds may develop in the afternoon, when high temperatures reach the mid-to-upper 70s. Humidity levels will be quite low with dew points in the 40s in some spots. A pleasant breeze from the north will blow at around 10 mph. Confidence: Medium-High

Tomorrow Night: Clear, calm, and cool. A few of the coldest suburbs could bottom out in the upper 40s, with mid-to-upper 50s in the close-in suburbs and downtown. Confidence: Medium-High


Chances are pretty good that we'll be locked into this remarkably stable and pleasant weather pattern Wednesday through Sunday. The refreshing Canadian high pressure will remain anchored to our north bringing partly to mostly sunny days and clear and cool nights. Day time highs Wednesday and Thursday will be in the mid-to-upper 70s, moderating to the low (and maybe some mid-) 80s for the Friday-Sunday period. Overnight lows should generally be in the low 50s (cooler suburbs) to around 60 (downtown) -- probably adding a few degrees to that by the weekend. Confidence: Medium

By Jason Samenow  | August 31, 2009; 5:00 AM ET
Categories:  Forecasts  
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Next: Making Hotter Augusts Not Quite as Hot in D.C.


Wonder if we'll get some of the near-record cool weather they have been getting in the Upper Midwest this past weekend...

Posted by: Bombo47jea | August 31, 2009 11:55 AM | Report abuse

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