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Posted at 10:45 AM ET, 07/ 2/2009

Forecast: A Warm, Mainly Dry Holiday Weekend

By Josh Larson

Humidity in check; outside chance of rain on 4th

* Students Do Their Share for Cleaner Air | The Superior Dew Point *


Today: Clouds & sun. PM t'storm? Low 80s | Tonight: Mostly cloudy; shower early? Mid-60s | Tomorrow: Mostly sunny & pleasant. Low 80s | July 4th Weekend | Beach Forecast


Mother Nature seems to have our best interests in mind (for outdoor activities) for this 4th of July holiday weekend. Most of the next five days will feature at least partly sunny skies, comfortable humidity levels for this time of year, and relatively low chances for precipitation (best chance is today). Temperatures through the period will generally be near or slightly below normal -- not exceeding the 80s. My fingers are crossed it will stay dry on the 4th, but cannot yet provide a guarantee.

Radar: Latest regional radar loop shows movement of precipitation over past two hours. Powered by HAMweather. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Today (Thursday): Though a few spots (mainly east of town) may see a morning shower or two, skies will give way to at least partial sunshine by afternoon, along with breezy westerly winds of 10-15 mph and slightly below-normal highs in the low 80s. A few scattered showers and thunderstorms may (20% chance) re-develop during the afternoon/evening hours, but they're unlikely to be widespread nor severe in nature, so impact should be minimal. Confidence: Medium-High

Tonight: A couple places may see an isolated shower or thunderstorm during the evening hours, as a weak cold front rolls through the area, but most locations will remain dry, albeit a bit breezy. Skies will eventually become partly cloudy, with overnight lows in the mid-60s throughout the area. Confidence: Medium-High

Keep reading for the holiday weekend forecast...

A vibrant sunset at the Lincoln Memorial Monday evening. By CWG photographer Kevin Ambrose.

Tomorrow (Friday): For the cadre of you who have Friday off from work, you'll be rewarded with surprisingly nice mid-summer weather. We'll see a blend of clouds and sun, breezy northwesterly winds of 10-15 mph, and relatively low humidity levels. Highs, like today, will be in the low 80s, but without the chance of precipitation. Confidence: High

Tomorrow Night: Mostly clear, pleasant conditions are expected Friday night, so you can keep the umbrellas safely sequestered at home and enjoy being outdoors. Temperatures in the 70s during the evening hours will eventually drop to the mid-60s for overnight lows (near 60 in the cooler suburbs). Confidence: High


The weather on Independence Day is expected to be generally cooperative for outdoor festivities. Plan on partly sunny skies with somewhat warmer highs in the mid-to-upper 80s along with low-ish humidity compared to some past July 4ths. While a shower or thunderstorm can't totally be removed from the forecast (20% chance), I'm hopeful the vast majority of the area will stay dry. If you're watching fireworks outside, note that the evening will be quite warm, with temperatures not expected to drop below 80 until around 10 p.m. Overnight lows will eventually drop to around 70. Confidence: Medium

Warm weather will continue on Sunday, with a blend of clouds and sun, continued reasonable humidity levels, and highs in the mid-80s. While, like Saturday, I can't completely rule out a stray shower or thunderstorm during the afternoon or evening hours (especially south of town), it's much more likely than not that we'll stay dry (80% chance). Sunday night will be mostly cloudy with lows in the mid-to-upper 60s. Confidence: Medium

The outlook for back-to-work Monday is for partly to mostly cloudy skies with afternoon highs remaining in the mid-80s with overnight lows, for the most part, in the mid-60s. Confidence: Medium


Heading to the Maryland or Delaware beaches for the weekend? Conditions should be fairly similar to those we'll experience in the immediate D.C. metro area, though temperatures will be a few degrees cooler -- especially during the daytime. Expect a fair amount of sunshine with highs ranging from near 80 on Friday to the low-to-mid 80s on Saturday and Sunday.

If you're heading up to Cape May, N.J., you can also expect quite a bit of sunshine and generally dry weather, though temperatures will be a few degrees cooler still: in the upper 70s for afternoon highs Friday through Sunday.

And if your travels take you to Virginia Beach, the partly to mostly sunny and dry forecast holds, but afternoon highs will be warmer -- generally in the mid-to-upper 80s -- and can't entirely rule out a shower or t'storm on the 4th. Conditions look much the same if you're heading towards the Outer Banks, except for milder overnight lows in the mid-70s.

Water temperatures are generally in the low 70s (north) to mid-70s (south).

By Josh Larson  | July 2, 2009; 10:45 AM ET
Categories:  Forecasts  
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Blue Ridge Mtns Report

Overnight low last night on the Blue Ridge: 59.9F

Current temp: 70.0F

June Snow Report

Posted by: spgass1 | July 2, 2009 10:34 AM | Report abuse

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