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Posted at 05:00 AM ET, 08/09/2012

Forecast: Hot with late day storms possible, severe storms possible Friday

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Today: Increasing clouds, PM t’storms possible. 90-94. | Tonight: Chance of evening t’storms. 70-75. | Tomorrow: Widespread PM t’storms likely, possibly severe. 84-88. | Get Express Forecast by E-mail


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

Heat and humidity combo plus dodging thunderstorms are challenging even for a hard core optimist. Get the Digit on Twitter | Discuss on Facebook


If nothing else, things are going to get a lot more active in the next couple of days thunderstorm-wise. By afternoon some strong thunderstorms are possible and then they get serious on Friday afternoon when the greatest threat for severe weather exists. This is all due to a relatively strong cold front dipping down into the Midwest tonight and headed our way. It should actually introduce a break in the heat and humidity for the weekend. With a little luck it will clear us out by Saturday night to enjoy the Perseid meteor shower!

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

Today (Thursday): Definitely a filtered sun again today with a good deal of left over high clouds from last night’s storms in the Midwest and our own plentiful humdity helping to bubble clouds from the ground up. This still does little to hold down temperatures with most areas likely to hit the lower 90s yet again. There is a 40% chance of storms. While a morning thundershower can’t be ruled out, chances are highest in the afternoon. A few storms could potentially turn severe, especially north and west of town. Strong winds and heavy downpours will be the main concern. Confidence: Medium-High

What is the Storm Threat Level?

Tonight: Thunderstorms are likely to become more numerous in the evening with a 60% chance of getting hit where you live. The storms should at least give a little boost to cooling. Lows should reach 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 (Friday): The sun is even more shaded by clouds galore. The cold front bears down on us by late afternoon and this is the impetus for the likelihood of a line of strong to severe thunderstorms capable of damaging wind and small hail. An isolated tornado or two also cannot be ruled out. There is an 80% chance of you getting wet; well, unless you stay inside!. Highs should struggle today with only mid -to-upper 80s for a change. Confidence: Medium

Tomorrow night: More thundershowers are likely to keep things rocking well into the night with a near certain 90% chance for rains. Many of us should end up with a half to one inch of rain out of this event. The abundance of rain cooling allows lows to drop into the upper 60s to lower 70s. Confidence: Medium-High


Saturday marks the gradual influx of a much more comfortable airmass. Lingering showers/storms are possible, especially east of I-95 (40 percent chance) but rain chances rapidly fall off to the west (20-30 percent change, mainly in the morning). Humidity should diminish and highs are mainly in the low-to-mid 80s.

Most importantly, skies should be gradually clearing by later in the day. This should open up the skies for looking for the Perseid meteor shower coming out of the northeastern skies. It helps to be a night owl...or an early riser as the best counts should occur after 1 a.m. You might get a chill as overnight lows reach the 60s. Confidence: Medium

Sunday is a near perfect summer day with sunny skies and seasonable temperatures resulting in highs in the mid-to-upper 80s and most importantly, humidity levels should be even lower. The evening is even better with readings in the 70s. Lows reach the 60s in all areas yet again! Confidence: Medium-High

Monday wastes no time pulling back the humidity and warming up temperatures. Highs should be in the upper 80s to lower 90s. There is a slight chance (20%) of a late day thundershower. Confidence: Low-Medium

By  |  05:00 AM ET, 08/09/2012

Categories:  Forecasts

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