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Posted at 05:00 AM ET, 08/03/2012

D.C. area forecast: August oven is on, with dog day mugginess included

EXPRESS FORECAST

Today: Partly sunny, hazy and muggy. Thundershower possible. 92-97. | Tonight: Evening t’shower possible. Low-to-mid 70s. | Tomorrow: Partly sunny, oppressively muggy. Shower/storm possible. 91-96. | Sunday: Partly sunny, sweaty. PM storms more likely. 90-96. | 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


Very muggy with an afternoon heat index near 100. A 3 since maybe I was too harsh on last Friday’s 0?! Get the Digit on Twitter | Discuss on Facebook

FORECAST IN DETAIL


What may be “classic” August heat will still make us sweaty and uncomfortable at times in the days ahead. We crescendo this weekend into even more stifling humidity to accompany our 90+ temperatures. It’s possible we’ll have to wait until into next week before we get a shot -- potentially -- at some noticeable relief! The nerve. In the meantime, expect pesky thundershowers to dot our landscape.

Today (Friday): Hazy and veiled sunshine still gets us hot into the mid-90s. Some spots could spike higher, but conditions would have to be just right -- with very sticky air the exact temperature is less important. Showers and storms should stay isolated (30% chance) and not last too long, but they may pop-up overhead with little warning. Remember to drink water with muggy dew points above 70, making it feel ~100 during the afternoon. Breezes may help at times, in the 5-15 mph range, out of the south. Confidence: Medium-High

Tonight: Hazy skies at sunset may cloud over a bit more, especially with all the water vapor in the air—and potential thundershowers widely peppering our region. There’s really only a very small chance of a shower or storm by late evening since they really need the sunshine to stay alive. Temperatures just before sunrise briefly bottom out in the low-to-mid 70s. Confidence: Medium-High

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

Tomorrow (Saturday): It actually may even be more humid and, unfortunately, with less breeze. High temperatures again eye the mid-90s. Please be careful to drink water and stay in the shade if outdoors. Sauna-like conditions may even warrant a heat advisory? Thundershowers again have a small (20-30%) chance of dotting the region, more so as the afternoon progresses, but it should be fine for much of the day. Confidence: Medium

Tomorrow night: Again haze and clouds dominate, with a 20-30% chance of thundershowers, which quickly diminish after dark. Dawntime lows only fall to the low-to-mid-70s. Maybe DCA hovers around 78? Confidence: Confidence: Medium-High

Sunday: We may have some sunshine before haze again takes hold thanks to highly muggy conditions. Clouds slowly billow into potential cumulonimbus clouds (thundershowers) as we march through the afternoon, with a 40-50% chance of rain by 6 p.m. A few storms could be severe late, particularly with a few gusty wind reports or hail. High temperatures should still hit the low 90s in most spots before showers start, but mid-90s are possible for drier spots. Confidence: Low-Medium

A LOOK AHEAD

Sunday night: Many clouds should be around, and they could yield additional showers and storms (50-60% chance) into the late evening as we welcome an arriving, summertime (not-so-cold) cold front. Rain may cool us decently well, at least, down into the upper 60s to lower 70s. Confidence: Low-Medium

Monday is hopefully the day our cold front pushes through, but it may make the morning more wet than the afternoon--with thundershowers possible (50% chance in the morning, 40% chance in the afternoon).Clearing may mean upper 80s, but more clouds and showers into the afternoon could cap us in the mid-80s. Confidence: Low-Medium

Tuesday could be fairly clear and sunny, with acceptable humidity levels, and temperatures just below 90 degrees?! Possible! But the front has to fully clear our area and stay far to our south. It remains to be seen, so expect at least 80s, if not temperatures around 90. And a thundershower may still be possible, sorry. Confidence: Low

By  |  05:00 AM ET, 08/03/2012

Categories:  Forecasts

 
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