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Posted at 05:00 AM ET, 07/06/2012

D.C. area forecast: Potentially dangerous heat continues to plague the area

* Heat advisory today 11-8 p.m. | Excessive Heat Watch Saturday *

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EXPRESS FORECAST

Today: Hazy, unpleasant. Isolated storm? 97-101. | Tonight: Partly cloudy. 77-83. | Tomorrow: Oppressive. Scattered p.m. storms? 99-106. | Sunday: Still sweaty. Late-day showers and t’storms likely. Mid-to-upper 90s. | 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


I’m worried this prolonged high heat is taking its toll. Air, breezes, water: NOTHING seems cool enough. Get the Digit on Twitter | Discuss on Facebook

FORECAST IN DETAIL


Everything feels overheated. Record heat looks possible too. Maybe even challenging the all time D.C. high temperature of 106? Potentially. Anywhere you look it is going to be downright miserable and dangerous if you’re out too long without taking numerous precautions. Any breeze out of the south or southwest only makes you long for cooler times. Please check on your friends, neighbors, and relatives. Make sure they are drinking plenty of water!

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

Today (Friday):Hazy sunshine still manages unrelentingly warm temperatures, quickly, toward highs in the upper 90s and lower 100s. It will be fairly oppressive, as well with heat indices approaching 105 or even 110 at times. I am watchful for thunderstorms, but they only appear 10-20% possible. Confidence: High

Tonight: A few stars may send down their shine through the haze. Low temperatures only get down into the 77-83 degree range. National could set a record high minimum daily temperature or two, if thunderstorms don’t cool the air down. Confidence: High

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

Tomorrow (Saturday): Get up early if you have errands. Record-threatening heat seems possible. Most places easily hit 100, but 105 or higher might even be in play places like National Airport. That daily record of 102 set in 2010 doesn’t look like it’ll last long. Again, any breeze will feel HOT and not refreshing, dew points are muggy, and an excessive heat warning might be on the way as heat indices threaten to head to and past 115. Only a few clouds may offer the hope of a thundershower, but there may be an elevated (30-40%) chance of strong thunderstorms by evening, so we’ll watch that for you. Confidence: Medium

Tomorrow night: We may hover in the 90s for much of the evening, assuming strong thunderstorms don’t pop up or march toward our region, which I’d be slightly concerned about with presumptive record heat. Low temperatures before dawn only get down into the upper 70s outside the beltway, and I fear around 84 degrees downtown. Confidence: Medium

Sunday: It’s still extremely hot, but maybe we are acclimating just as a cold front starts progressing toward us. Mid-90s to near 100 looks plausible, before a decent 50-60% chance of thunderstorms (strong to severe?) kick off as we approach dinnertime. I suggest finding a movie theater with A/C and checking back for our latest tweets on any developing storms during the afternoon. Confidence: Medium

A LOOK AHEAD

Sunday night: Thunderstorms (35-45% chance) could make us feel a bit refreshed, but if you are lucky to have a storm cool you, your locale may still only end up in the low 70s before dawn. Mid-70s are more likely if it doesn’t rain much, and maybe downtown even if it rains. Confidence: Medium

Monday could be decent, even chilly to some! High temperatures in the upper 80s to around 90 with lower dew points are much, much better. A few thundershowers early to middle part of the day are possible but they should move south quickly as the front sags southward too. Confidence: Low-Medium

Tuesday may deserve a Nice Day Sunshine from us, if temperatures can hold near the mid-80s. I may be too optimistic though. But I, for one, am looking forward to what appears to be somewhat sunny skies, lower humidity, and less brutally hot temperatures. Confidence: Low-Medium

By  |  05:00 AM ET, 07/06/2012

Categories:  Forecasts

 
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