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Posted at 11:10 AM ET, 07/31/2008

Forecast: Heat and Humidity Here to Stay

By Josh Larson

A few showers today; weekend mostly rain-free

If you're awaiting significant relief from the current heat and humidity, you're going to have to be quite patient. It's probable that temperatures will be warmer than normal over the next week, along with relatively high humidity levels to boot. The good news is that, outside the possibility of some scattered thunderstorms Saturday, the weekend looks predominately dry -- albeit hot and humid.


Radar: Latest D.C. area radar loop, courtesy National Weather Service. Refresh page to update, or click on image to expand.

Partly sunny; showers/t-storm? Low 90s. Plan on a blend of clouds and sun today, the last day of July, along with continued high humidity levels. Afternoon highs will reach the low 90s in most places. A few showers or thunderstorms cannot be ruled out.

Tonight will be partly to mostly cloudy and muggy with a slight chance of an isolated shower in spots. Lows will range from the low to mid 70s.

Confidence: Medium-High

Keep reading for the forecast through the beginning of next week, and see NatCast for tonight's game at Nationals Park.


Mostly sunny. Low 90s. The first day of August (Friday) will feature mostly sunny skies and humidity levels just a touch lower, as high pressure builds in. Afternoon highs will again be in the low 90s, with little to no chance of rain.

Mostly clear, though still rather muggy, Friday night with lows once again from the low to mid 70s.


If you're planning outdoor activities on Saturday, you can expect a blend of clouds and sun with relatively high humidity levels and afternoon highs within a degree or two of 90. Some scattered thunderstorms are possible during the afternoon, but no sure thing. Saturday night will feature partly cloudy skies with lows from 70-75. Confidence: Medium

On Sunday, look for partly to mostly sunny skies and high temperatures in the low 90s. The area should once again remain primarily dry (at least in terms of drops of rain falling from the sky as opposed to the amount of moisture in the air). Saturday night will feature partly cloudy skies and lows once again from 70-75. Confidence: Medium-High

The outlook for Monday calls for a continuation of partly to mostly sunny skies, hot and humid afternoon highs in the low 90s and rather muggy overnight lows in the low to mid 70s. Confidence: Medium

By Josh Larson  | July 31, 2008; 11:10 AM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: NatCast: Warm & Humid; Slight Chance T'storm
Next: White Christmas -- in July?


Arrgh. Why can't the temperatures be below average some more?

Posted by: Murre | July 31, 2008 5:29 AM | Report abuse

Will this E-W blob of rain to our west stay on target (my front yard)?

Front to the distant north of the region, stronger storms on the south (and 'following' the moisture further south?).

Posted by: Bikerjohn | July 31, 2008 8:18 AM | Report abuse

Looks like that nice blob is going to stay south of me in NW Montgomery.

Posted by: JT | July 31, 2008 8:43 AM | Report abuse

Correction: I meant "All" our front yards...

Posted by: Bikerjohn | July 31, 2008 10:47 AM | Report abuse

Nothing at all. Just a cloudy day.

Posted by: Anonymous | July 31, 2008 11:45 AM | Report abuse

Light rain in Bethesda.

Posted by: Storm-petrel | July 31, 2008 11:58 AM | Report abuse

Bombocast. [From now on, Bombocast will be using standard abbreviations for cloud types whenever appropriate.]

Today, Rain and showers, high 92F, probably cooling as rain moves through area. Tonight, Possibly clearing as frontal boundary moves S and E. Low, 71F in city to 65F towards Blue Ridge. Tomorrow, Drier and sunny, high 89-92F.

Current: Cloudy, As translucidus, Ac and some Sc, 91F, 29.81 rising/steady. Rain field to SW beginning to move through area. Primarily light, perhaps some moderate rain.

Posted by: El Bombo | July 31, 2008 12:11 PM | Report abuse

I was noticing that the poll from "how do you like your humidity" favored dew points. Are you guys going to start incorporating dew points into the forecast during the remainder of the summer? I think it would be very helpful.

Posted by: Anonymous | July 31, 2008 4:36 PM | Report abuse

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