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Posted at 4:10 PM ET, 08/30/2009

Forecast: Cooler Weather on the Way

By Brian Jackson

* Outside Now? Radar, Clouds, Temps & More: Weather Wall *
* The Power of Hurricane-Force Winds | Hurricane Tracking Center *


Today: Partly sunny, slight chance of showers. 83-86. | Tonight: Partly cloudy. 59-64. | Tomorrow: Clouds & sun, slight shower chance late. 73-77. | A Look Ahead


A fair mix of sun and clouds today will be a brief respite from our rainy past and possible future. Just how rainy a future depends on the placement of a cold front along the coast. So, set up some fans outside blowing to the east and maybe we'll be o.k. If that doesn't work, several waves of showers could move across our region between Monday and mid-week.

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 (Sunday): We'll begin to dry out today as the cold front that brought heavy rains to parts of the area the past few days heads out to sea. Only a 20% chance for a shower remains, mainly in the morning and east of town. The afternoon should be dry with highs in the low-to-mid 80s under partly sunny skies. Winds will be out of the west-northwest at 5-10 mph. Confidence: Medium-High

Tonight: Expect partly cloudy skies overnight. We'll cool down nicely, with overnight lows in the low 60s for most with a few places reaching the upper 50s. Winds will become from the north at around 5 mph. Confidence: Medium-High

Keep reading for your forecast through mid-week...

Tomorrow (Monday): Much cooler weather begins to work its way in to start out the work week. Despite morning sunshine, considerable cloud cover in the afternoon should limit our highs to the mid-70s. By late afternoon or evening, we could (30% chance) see some showers working in from the south. Confidence: Medium-High

Tomorrow Night: Showers may (40% chance) become more numerous overnight as a weak wave of low pressure slides up the coast - especially east of town. Skies will be mostly overcast and overnight lows will be near 60 degrees. Confidence: Medium


Our fate lies with how far offshore this cold front moves. On Tuesday we'll be right in the transition zone between beautiful fall-like weather to the west and dampening rain to the east. So chances for showers and thundershowers remain with us (30% chance). Highs will probably be held down by mostly cloudy skies, topping out in the mid-70s. Confidence: Medium

By Wednesday, sunshine will most likely break out. High pressure builds in from the west diminishing our chances of rain. Partly sunny skies should prevail with highs in the mid-70s. Confidence: Medium

By Brian Jackson  | August 30, 2009; 4:10 PM ET
Categories:  Forecasts  
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Beautiful morning, can almost feel fall on the horizon.

Posted by: Ian-CapitalWeatherGang | August 30, 2009 10:35 AM | Report abuse

Meteorological autumn begins Tuesday. Looks as though I can give met. summer a "B", my first passing grade this year! June and July were OK though there was too much rain during June, especially early in the month. Temperatures were mild until August when the heat & humidity started getting here. Rainy cold fronts had a habit of getting stalled over the weekend by tropical disturbances this month, and the dry weather in late July started the "much needed rain" crowd complaining despite the spring deluges which gave this area a healthy water table all summer. Up in Wisconsin, cold weather this weekend is heralding an early fall season. It has been very dry in northern Wisconsin most of the year. Football season is starting.

Posted by: Bombo47jea | August 30, 2009 12:45 PM | Report abuse

what a great day outside! but watch out for the high UV outside. wear sunscreen! (now that the clouds have cleared)

Posted by: Camden-CapitalWeatherGang | August 30, 2009 1:27 PM | Report abuse

Was hoping for Indian Summer this year. Fall does indeed seem to be coming right on time however.

Posted by: Havoc737 | August 30, 2009 4:33 PM | Report abuse

new small storms popping up along the Potomac & around Beltway....

Posted by: Camden-CapitalWeatherGang | August 30, 2009 6:15 PM | Report abuse

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