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Posted at 5:00 AM ET, 07/10/2008

Forecast: Humidity on Hiatus, Relief from Rain

By Josh Larson

Rain chances return Sunday, Monday

The cold front that pushed through last night will bring a welcome decrease in humidity levels today, though temperatures will remain about the same. Weak high pressure Friday through the weekend means quite a bit of sunshine, reasonable levels of humidity, and warm to hot temperatures. An approaching cold front may spark showers and thunderstorms late Sunday into Monday.


Mostly sunny and less humid. Upper 80s. Much drier air and light north to northwest winds (around 10 mph) will provide evidence of last night's cold front passage. Afternoon highs will top out in the upper 80s to near 90 -- similar to yesterday -- but it won't feel nearly as sultry due to the reduced humidity.

Tonight will feature mostly clear skies and comfortable conditions, with overnight lows ranging from the mid 60s across the typically cooler suburbs to near 70 downtown.

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


Mostly sunny and warm. Near 90. Tomorrow (Friday) will be nearly a carbon copy of today. Look for mostly sunny skies, humidity levels largely in check, and afternoon highs right around 90. A light breeze from the northwest will shift to (from the) south during the afternoon hours.

Mostly clear and still rather pleasant as you head out Friday night, with overnight lows dropping to the upper 60s to low 70s.


Saturday should see a continuation of mostly sunny skies, slightly increased humidity levels and highs probably in the low 90s. It will be a touch less comfortable Saturday night, with overnight lows from 70-75. Confidence: Medium-High

Plan on partly to mostly sunny skies on Sunday with rather high -- though not unbearable -- humidity levels. Clouds may increase during the second half of the day as a cold front approaches from the west. Afternoon highs will once again be around 90. That cold front may spark evening or overnight showers and thunderstorms on Sunday into Monday, though the timing is uncertain. Confidence: Medium

The forecast for Monday is rather uncertain due to the possible timing of the previous mentioned cold front. We'll call for mostly cloudy skies with scattered showers and thunderstorms possible along with potentially cooler afternoon highs in the mid 80s. Confidence: Medium-Low

By Josh Larson  | July 10, 2008; 5:00 AM ET
Categories:  Forecasts  
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Weren't there predictions for a hot and dry summer? After a deluge in May, nearly 6" in June, and now nearing 2" for July, and with only four days of extreme heat in early June, that has not occured. What has changed?

Posted by: steve takoma park md | July 10, 2008 11:17 AM | Report abuse

Steve, I believe the hot dry period is forecast mainly for August.

We could be crying for relief around Labor Day. The current pattern change is starting to make things look dry.

Posted by: El Bombo | July 10, 2008 11:39 AM | Report abuse

Here's a look back at our summer outlook. Am having trouble finding an archive of NOAA's June-July-August outlook, though we did display their temperature map for that time period here.

Posted by: Capital Weather Gang | July 10, 2008 11:43 AM | Report abuse

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