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Posted at 05:00 AM ET, 02/27/2012

Forecast: Sunny, pleasant start to week, but chilly rain Wednesday

Today's Daily Digit
 
A somewhat subjective rating of the
day's weather, on a scale of 0 to 10.

 
Just like Sunday, but add 10 degrees.
 
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EXPRESS FORECAST

Today: Partly to mostly sunny. 57-62. | Tonight: Partly cloudy. 30s. | Tomorrow: Mostly sunny. 49-54. | Get Express Forecast by E-mail

FORECAST IN DETAIL

The last several days of February will bear close rememblance to the rest of the month: generally milder than average but with a tease of winter thrown in. The wintry tease this week comes Wednesday in the form of a raw, cool, rainy day (although warm air will be close by). Thursday and Friday then look great before some milder rain showers Saturday.

Snow Potential Index: 0 (→) - It can/does snow in March in DC, but nothing on the horizon in next week.
 
The SPI is a daily assessment of the potential for accumulating snow for the next week on a 0-10 scale. Get the 'SPI' on Twitter
 

Today (Monday): A great day. The combination of a mild breeze from the southwest and a good amount of sunshine elevates highs to around 60 (a little cooler northwest and warmer south). Confidence: High

Tonight: A weak cold front scoots by, but generates just a few clouds. Overnight lows aren’t terribly cold ranging from the low 30s in the cooler suburbs to the upper 30s downtown.. Confidence: High

Keep reading to find out for the forecast into the first weekend of March...

Tomorrow (Tuesday): Behind the little cold front, winds come in from the north (at around 10 mph). So despite considerable sunshine, temperatures drop 5-8 degrees relative to Monday. Highs reach the upper 40s to low 50s. . Confidence: Medium-High

Tomorrow night: Clouds increase and it’s a bit chilly. There’s a chance (40-50%) of light rain towards morning, but I can’t rule out some patchy freezing rain in the colder north and west suburbs (especially from Loudoun to northwestern Montgomery county and to the northwest). With an area of Arctic high pressure parked to the north, we may see a bit of a cold wedge develop, sufficient to cool some of the outer areas to near freezing. Although we’ll need to watch temperatures closely, we should be talking just a plain rain in most spots. Lows range from the low 30s in the cooler suburbs to the mid-to-upper 30s downtown.. Confidence: Low-Medium

A LOOK AHEAD

Wednesday is likely rainy and chilly. There’s a chance a warm front pushes through, allowing temperatures to spike into the 50s. But, more likely, we hold in the 40s (low 40s northern suburbs, upper 40s southern suburbs). Rain showers continue into Wednesday night before tapering off late. Temperatures probably stay steady in the 40s. Confidence: Medium

High pressure builds back into the region for Thursday and Friday. There may be a little fog Thursday morning, but then it becomes sunny, with seasonably moderate highs in the low 50s or so. Mostly clear and chilly Thursday night, with lows from the upper 20s to mid-30s (suburbs to city). Friday looks great to close out the work week with partly to mostly sunny skies and highs 55-60. Confidence: Medium-High

The next frontal system moves through the region on Saturday, bringing a decent chance of showers (50-60%). How mild it gets depends on how far north the warm front is able to push through before the cooler air arrives. I’ll call for a high of 60, but this may need to be adjusted (and there may well be significant regional variability). Gradual clearing Saturday night and turning breezy, with lows in the 30s. Confidence: Low-Medium

Sunday appears like it should be partly sunny, breezy and cool, with highs 45-50. Confidence: Medium

By  |  05:00 AM ET, 02/27/2012

Categories:  Forecasts

 
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