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Posted at 5:00 AM ET, 07/30/2008

Forecast: Hot Today. Blowtorch on the Way?

By Dan Stillman

A few p.m. storms today and tomorrow

No doubt today's low-to-mid 90s will feel plenty hot. But will temperatures early next week make today's seem like a garden-variety heat? Models are waffling on that answer, and on whether a front bothering us with midweek storm chances will clear out in time for the weekend. Should they develop, some storms could be strong late today and tomorrow.


Webcam: Latest view of D.C. from the Netherlands Carillon at Arlington National Cemetery. Courtesy National Park Service. Refresh page to update.

Hot and humid. 40% chance of late-day storm. Low-to-mid 90s. What we have here is a classic summer scorcher: Mostly sunny to start with temperatures climbing toward highs in the low-to-mid 90s, afternoon heat index in the mid 90s to near 100, and building afternoon clouds with a chance of late-afternoon or evening thunderstorms. I'd put the chance of seeing a storm where you happen to be at about 40%.

Tonight, after a chance of an evening storm, partly cloudy with lows in the low-to-mid 70s.

Confidence: Medium-High

Keep reading for the forecast into early next week. See NatCast if you're headed to tonight's game at Nationals Park.


Partly sunny and humid. Low 90s. 30-40% chance of late-day storm. Tomorrow should be partly sunny and just as humid as today, and in some spots just as hot with highs in the low 90s. Again, a few late-afternoon or evening thunderstorms could pop up. Your chances of getting hit by one of these are in the range of 30-40%. Overnight, diminishing storm chances and clearing skies with lows in the low-to-mid 70s.


On Friday and Saturday, humidity will be reduced but not totally eliminated. Highs should reach near 90 both days under partly to mostly sunny skies. A passing shower or two can't be ruled out as a little piece of energy in the atmosphere moves through. Confidence: Medium

Sunday through Tuesday: Yesterday, signs were pointing to some serious heat and humidity, especially for Monday and Tuesday (like mid 90s to near 100). But the models have backed off a bit for the moment. Best guess for now is highs near 90 on Sunday, and low-to-mid 90s on Monday and Tuesday. Rain chances are uncertain, too, as one model has hinted at a juicy low-pressure system in our vicinity, while others have not. Confidence: Low

By Dan Stillman  | July 30, 2008; 5:00 AM ET
Categories:  Forecasts  
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