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Posted at 5:00 AM ET, 08/ 5/2008

Forecast: Heating Up, But Nice Weekend Promised

By Matt Rogers

Strong storms possible late today/tonight

Knowing full well that Tuesdays and Wednesdays are common "at work" days, Mother Nature decided to offer the most humidity and the best thunderstorm chances on these next two days. Her campaign strategy is clearly poised to offer some pain before any sizable gains are realized. With polls showing overwhelming support for a nice non-humid weekend forecast, she is attempting a campaign promise we all hope she can deliver.


Heat picks up a notch. Some debate on thunderstorms. The main issue on the agenda today will be a slight increase in heat and humidity. High temperatures should reach into the upper 80s and lower 90s around the area, but there will be an increase in cloud cover this afternoon. Also, the weather models are debating the likelihood of thunderstorms late this afternoon. The current thinking is a 40% opportunity. Look for southwest winds at 5-10 mph bringing in unwanted hot air to the city.

More opportunities for thunderstorms are seen this evening and tonight with a 60% likelihood of activity around the area. These storms could be powerful with frequent lightning and strong winds. Lows in the lower 70s.

Keep reading for the forecast through the weekend.


Wednesday is peak heat day again. Highs lower 90s. A few spots around the area could inch toward the middle 90s tomorrow, but humidities are still not expected to be as strong as previous heat events across the area. Mother Nature is definitely toning down her message, but still holding onto a chance for afternoon thunderstorms (30%).

A shower or storm is possible in the evening and even into the overnight time frame (an additional 30% chance) with lows dropping down toward the upper 60s and lower 70s.


Thursday should be a step in the right direction with lowered humidities, partly sunny skies, and highs in the upper 80s. Lows Thursday night dip into the upper 60s. Confidence: Medium-High

Friday shows a chance of thunderstorms with a disturbance moving through (30%), but temperatures should continue with a favorability rating in the middle to upper 80s. Confidence: Medium

The weekend is where Mother Nature will be announcing her victory speech assuming she keeps her promise. Right now, we are looking at highly favorable lower to middle 80s with lows in the pleasant lower to middle 60s. Partly sunny skies are scheduled with only a slight chance of an afternoon shower or storm each day (20% right now). Confidence: Low-Medium

By Matt Rogers  | August 5, 2008; 5:00 AM ET
Categories:  Forecasts  
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Next: Update: Edouard Makes Lone Star Landfall


Ooo, weekend highs in the mid eighties sounds nice. In my 22 yrs in the DC metro area, I recall many an August being cooler than July, heightening my hopes for lower temps. Thanks, CW Gang.

Posted by: jhbyer | August 5, 2008 5:51 AM | Report abuse

It's another nice sunny morning with 55-60 temperatures. I wish every day would be like this.

It is, on vacation.

Posted by: Murre | August 5, 2008 7:39 AM | Report abuse

Great post, very clever.

Posted by: Southside FFX | August 5, 2008 8:23 AM | Report abuse

Edouard has made landfall on the Texas coast with maximum winds of 65 mph.

Posted by: CapitalClimate | August 5, 2008 9:58 AM | Report abuse

The first line of storms seem to be sliding to the south of our area.

Posted by: JT | August 5, 2008 10:06 AM | Report abuse

Tonight, Tuesday August 5th, is the 25th Annual "National Night Out" across the area and across much of the United States.

The observance in my lower Southern Maryland neighborhood takes place from from 6:00 pm to 8:00 pm. Planned are lots of outdoor fun activities, such as a "Moon Bounce", "Dunk Tank", and "Fast Pitch Radar" among others.

What words of precaution does the Capital Weather Gang have (if any) for the organizers of this largely outdoor event?

(And THANKS in advance.)

Posted by: Local Night In??? | August 5, 2008 10:58 AM | Report abuse

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