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Posted at 05:00 AM ET, 02/15/2013

D.C. area forecast: Late-day showers transition to some snow tonight; wintry weekend

EXPRESS FORECAST

Today: Increasing clouds. Late shower? 51-57. | Tonight: Rain transitions to snow before ending. Near 30 to mid-30s. | Tomorrow: Some snow possible mainly late, brisk. Upper 30s to low 40s. | Sunday: Mostly sunny, somewhat windy. 30s. | A Look Ahead | Get Express Forecast by E-mail

TODAY'S DAILY DIGIT

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10


Some morning sun plus mild temperatures make it an acceptable one before precip arrives late day. Get the Digit on Twitter | Discuss on Facebook

SNOW POTENTIAL INDEX

A daily assessment of the potential for *accumulating* snow for the next week on a 0-10 scale. More info


SPI: 5 (↑) - Some snow in the area Fri night, though it’s still a tricky one to nail down. Maybe another batch on Saturday? Get the SPI on Twitter | Discuss on Facebook

FORECAST IN DETAIL


Today’s relatively benign, increasingly cloudy, and mild conditions could turn interesting late tonight as rain showers transition into snow showers—perhaps even a band or two of accumulating snow for some. Behind the cold front this evenings’s temperatures do tumble and make for a more wintry weekend. Are you a winter weather lover? Would you relish temperatures and snow coming along with colder air?

Today (Friday): Clouds are slowly on the increase but we should have some hints of sunshine, especially during morning hours. Mid-afternoon temperatures should top out in the low-to-mid 50s for just about everyone, with upper 50s possible south of town in sunnier spots. You can thank moderate west-southwesterly breezes for bolstering temperatures, despite the cloud cover. Rain and rain mixing with snow odds reach the likely category by sundown, particularly west of town. What not to worry about today? That close-by asteroid skirting Earth. Confidence: Medium-High

Tonight: Temperatures continue to drop coincident with sundown and precipitation moving across the area, but they have a good way to go from daytime highs to a point where we have to worry a lot about wintry conditions. Still, it could very well come down hard enough to get some snow on the ground, at least in spots. For now this looks like a quick hitter and it’s outta here by near or after midnight. We still generally favor the dusting to 1 inch scenario where snow sticks, though bands could in theory drop more, so we’ll be watching. After midnight, it’s mostly just cloudy but there could be some snow showers around. Low temperatures end up near 30 to the mid-30s. Confidence: Low

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend...

Tomorrow (Saturday): We may see a break last through the morning as a secondary wave begins to get organized offshore to our southeast. This storm wants to wrap up pretty quick and it’s uncertain where the exact track is. We might be close enough to get back in on some snow (showers or even steadier light snow) in the afternoon into evening. For now, it appears the main activity will stay east though. Northwesterly winds could gust toward 20 mph at times, and high temperatures could struggle to get into the upper 30s to low 40s before falling back in any precipitation or near sundown. Bundle up! Confidence: Low-Medium

Tomorrow night: We’ll deal with that slight chance of snow into perhaps late evening, before overnight temperatures drop, and—slowly—so do the breezes. Still, bundle up since it only takes a small breeze to make low-to-mid 20s feel nippy. Even downtown gets cold because skies may eventually clear off as winds kick up behind the departing storm. Confidence: Medium

Sunday: What is this, winter? Despite mostly sunny skies, temperatures stay in the low-to-mid 30s. Some spots south of town could perhaps see upper 30s. You can thank daytime breezes out of the cold northwest direction—kicking temperatures down slightly. With gusts toward 25 mph during the midday hours, you really may want those gloves and a scarf! Wind chills could stay in the 20s. Confidence: Medium-High

A LOOK AHEAD

Sunday night is when, finally, the breeze should slacken. Yet don’t be mistaken, upper teens to mid-20s (downtown) will still require a few layers while you’re out. Confidence: Medium-High

Presidents’ Day (Monday) should be fairly splendid if you have a holiday, so enjoy high temperatures in the 40s with little breeze. At least until the afternoon, when it might pick up a bit. Clouds stream in during the overnight and we could even see a bit of light rain or freezing rain late—nothing intense. Confidence: Medium

Tuesday could feature mostly cloudy conditions with some potential wintry precipitation early, but it should, eventually, change to rain and shouldn’t be a big deal either way. High temperatures should eventually climb into the upper 40s to low 50s in the afternoon. Confidence: Low

Ian Livingston contributed to this forecast.

By  |  05:00 AM ET, 02/15/2013

Categories:  Forecasts

 
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