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Posted at 05:00 AM ET, 07/27/2012

D.C. area forecast: Hot again, with late-day storms possible; less hot this weekend

* Heat advisory for D.C. and S & E suburbs (map) noon to 7 p.m.*

EXPRESS FORECAST

Today: Partly sunny, hot. Strong storms possible late. Mid-90s to near 100. | Tonight: Evening storms possible. Muggy. 70s. | Tomorrow: Less oppressive, variably cloudy. Afternoon storms? Low-to-mid 90s. | Sunday: Partly sunny, decent. Upper 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


Again? Why must we face near-record heat + humidity only to see a late-day strong/severe storm risk? SMH. Get the Digit on Twitter | Discuss on Facebook

FORECAST IN DETAIL


A cold front on the periphery of our HOT high pressure system approaches, adding an extra ingredient of instability to the air today. The question is: will it bring a trigger early enough for more numerous storms? Either way, records potentially in play today include 100 at National, 98 at Dulles, and 101 at BWI. As storms build and approach from the west, and if any severe weather watches are issued, stay tuned to us here, as we’ll be sure to keep you updated.

Today (Friday): No escaping this serious heat and haze for yet another day. Have you adapted? Even with the potential for slightly less humidity in the air, temperatures quickly skyrocket toward the mid-90s--even possibly eying 100. Sunshine, which seems hot no matter what time of day it is, may hide behind periodic clouds, but it won’t help much. Thundershower chances increase from 30% to 40% as we progress through the afternoon into evening rush hour. Any storms could turn severe, with winds over 58 mph being the main threat. Confidence: Medium-High








What is the Storm Threat Level?

Tonight: Thundershowers may linger through the evening (40% chance), especially if they gain severe classification and have enough momentum to survive for a bit after sunset. Low temperatures before sunrise only briefly hover in the 70s — and it may feel very muggy too. Confidence: Medium-High

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

Tomorrow (Saturday): Retreating slowly, dew points come down to slightly more tolerable levels. Temperatures, well, they should stay in double-digits at least — consolation, right? Low-to-mid 90s won’t make you quite as dizzy as near-100 temperatures, but please still drink tons of water. The atmosphere may want to cool us a bit with late-day storms, for which there is a 30-40% chance of them popping up overhead. Confidence: Medium

Tomorrow night: Any evening showers and storms (20% chance) die quickly, revealing some open sky for us to enjoy twilight hours, hopefully. More comfortable temperature readings fall slowly toward their dawntime minima in the upper 60s to low 70s. Confidence: Medium

Sunday: We score with sunshine that feels less scorching. A brief dip in humidity levels should help showcase the very season-appropriate highs in the upper 80s to near 90. This is the day to do all those outdoor chores, enjoy the final Capital Fringe Fest day, or run errands with lots of sunscreen on. Another highlight? Rain chances are down to 10% to 20%. Confidence: Medium-High

A LOOK AHEAD

Sunday night: Patio dining must happen. Enjoy temperatures that get down to arguably pleasant lower 70s downtown, and mid-60s for lucky folks outside the Beltway. Confidence: Medium

Monday may continue a somewhat tolerable level of mugginess below what we have recently sweat through. But, of course, given the time of year, we easily reach upper 80s to lower 90s and can insert a (mainly afternoon) shower/storm threat. 40% rain chances offer some hope of rain, at least. Confidence: Low-Medium

Tuesday may copy a lot of Monday’s weather, but with a bit less sunshine probably. Storm chances are in the moderate range, around 50%, with a higher chance of seeing a few strong ones as well. High temperatures remain around 90 degrees, perhaps lower 90s, with full-on mugginess again. Confidence: Low

By  |  05:00 AM ET, 07/27/2012

Categories:  Forecasts

 
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