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Posted at 05:00 AM ET, 08/31/2012

D.C. area forecast: August heat to be replaced by September showers and humidity

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EXPRESS FORECAST

Today: Mainly sunny, hot. Low-to-mid 90s. | Tonight: Calm, clear. Upper 60s to low 70s. | Tomorrow: Mostly sunny, hot. Low-to-mid 90s. | Sunday: Increasing clouds, chance of showers and t’showers. Mid-80s to near 90. | A Look Ahead | Get Express Forecast by E-mail

TODAY'S DAILY DIGIT

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10


It’s a Friday, could be muggier, and a holiday weekend. That’s 3 points. All I can muster with 90s! Get the Digit on Twitter | Discuss on Facebook

FORECAST IN DETAIL


Get outdoors and to the beach during the first-half of the holiday weekend, while the getting is good! We have heat for a couple days, and that is to be swapped-out with more mugginess by Sunday and into next week. Isaac’s remains make themselves known with higher humidity, but it isn’t until those clouds and showers really start encroaching on our area Sunday (more so after?) that we get a break from summer-certified heat in the 90s.

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

Today (Friday): Welp, it is a summer resurgent with low-to-mid 90s (higher isn’t out of the question?) under a bright, hot sun. Wear that sunscreen! At least dew points stay somewhat low (in the 60s) to keep us from labeling this “oppressive” heat. Get on the road, with that A/C blasting, and drive toward something cool! Confidence: Medium-High

Tonight: Mostly clear skies give us a good view of moon and stars, with low temperatures in the upper 60s to low 70s. Humidity is there, but not too bad. Confidence: High

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend...

Tomorrow (Saturday): We should stay mostly dry and warm up nice again, into the low-to-mid 90s. Try to get in those outdoor or beach activities before the weekend gets away from you and clouds/rain chances increase. Sunny skies are only slightly veiled by high clouds associated with Isaac’s remnants far off to our west. Light northwest breezes and a few late cumulus clouds don’t cool us off too much. But most of you are ok with that, I think? There could be an isolated shower late somewhere, nothing major though. Confidence: High

Tomorrow night: This is when we may begin seeing fewer stars, as Isaac slowly fans clouds toward our region. Low temperatures in the 70-76 degree range (suburbs-city) are likely. In the city, we aren’t going to enjoy low temperatures below 70 for the foreseeable future. Just a slight chance of a shower. Confidence: Medium-High

Sunday: The area may eke out some sunshine, but clouds really start rolling in, along with the threat of some showers, by midday or afternoon. Isaac’s main moisture, for the most part, could still be located in the Midwest. Still, showers or thunderstorms (40% chance) may roam in the afternoon. High temperatures should still hit the mid-80s, perhaps near 90 with more afternoon sunshine than I currently predict (possible!). Oh, and expect to keep sweating in muggier and muggier air that is arriving. Thanks, Isaac. Confidence: Medium

A LOOK AHEAD

Sunday night: Mostly cloudy skies look to be likely with a (40-50%) chance of showers and thunderstorms. Mugginess is palpable and low temperatures are no help, as we remain in a Floridian temperature range of low-to-mid 70s. Confidence: Low-Medium

Labor Day (Monday) is in danger of not only being tropical-like in the humid sense, but also from the (50%) chance of a few tropical downpours. If you are driving home from the beach, please take your time and be safe. Clouds may hang around in some abundance, but I am optimistic at this point (stay tuned though) we see a bit more sun than solid cloud cover. High temperatures in the mid-80s with high dew points make it feel “about how it should feel” for the holiday… agree? Highs reach the mid-80s. Confidence: Medium

Tuesday may still be fairly cloudy and muggy damp along with a 50% chance of thundershowers. High temperatures in the mid-80s should keep you from mourning the unofficial end to summer. We can’t rule out nearing the 90 degree mark, should sunshine break out in-force during the afternoon. Confidence: Low-Medium

Beachcast: Friday & Saturday may be the least shower-prone day for some sun and fun, but even Sunday should be alright until midday showers move in a disorganized fashion eastward. Points westward from a line formed roughly by Annapolis to the NC Outer Banks could see some precip (40% chance) by around midday Sunday, though clouds move in for almost all beach-goers from NJ to NC.

For a better chance at a fully dry Sunday, try to head east and north of the Bay. Conditions may stay somewhat better for beaches around and north of Ocean City for instance. Points south of Ocean City run a higher risk—especially Va. and NC beaches—of some rain activity Sunday night and into Monday morning (60-70% chance).

High temperatures should hover in a muggy range of mid-80s to perhaps lower 90s in sunny spots along southern beaches of our greater region. If clouds and showers persist for more than four hours, chances are your beach will hold in the 80s, and not hit 90 this weekend. Wave heights should be relatively tame in most areas, in the 1-2’ range with most water temperatures around 80 near D.C., Ocean City, and points southward. New Jersey and De. beaches should have water temperatures ranging in the mid-to-upper 70s.

By  |  05:00 AM ET, 08/31/2012

Categories:  Forecasts

 
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