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Posted at 05:00 AM ET, 01/07/2013

D.C. area forecast: Don’t let a cooler Monday fool you, much warmer air is coming

7:45 a.m. update: Clouds remained over the area last night, helping keep low temperatures up a bit. This means we start the day with temperatures near forecast highs. Though temperatures still won’t climb much, a range of mid-40s to near 50 is now expected.

EXPRESS FORECAST

Today: Mostly sunny. Low-to-mid 40s. | Tonight: Mostly clear. Low 20s to near freezing. | Tomorrow: Partly to mostly sunny. Upper 40s to lower 50s. | 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


Temps are cooler than Sunday, but near normal with lots of sun. -1 for Monday? 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: 0 (↓) - Mid-winter usually calls for at least a 1, but temps above 60 are more likely than snow over the next week. Get the SPI on Twitter | Discuss on Facebook

FORECAST IN DETAIL


Temperatures head back down today compared to yesterday, but the overall story for the week is a mild one. With normal daytime readings nearing their lowest point for the year, it looks like we’ll be putting up some big “red” (positive departure) numbers in coming days. Besides a few potential showers late in the work week, which are likely to be light if they happen, there’s nothing of wintry note on the immediate horizon.

Today (Monday): Some of the overnight cloudiness may linger into early morning, but on the whole, mostly sunny skies greet the work week. Breezes are mainly light from the northwest, with some noticeable gusts from time to time. Somewhat chilly, as it should be, but not bad at all. Highs mainly range from the low-to-mid 40s. Confidence: Medium-High

Tonight: No really cloudy periods in sight, just plenty of stars (if you can see them through the light pollution). Lows may dip as far as the lower 20s in some outer suburbs while nearing freezing downtown. Winds are light, but probably shifting to come from the south as the night wears on. Confidence: Medium-High

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

Tomorrow (Tuesday): We should see another very sunny day, though a few clouds may float by as a small disturbance or two passes to our north along the jet stream. Light south winds help boost our temperatures, with afternoon numbers heading for the upper 40s to lower 50s. Confidence: Medium-High

Tomorrow night: It’s no worse than partly to mostly clear. Match that up with winds doing their usual overnight calming. Readings ultimately dip down to the upper 20s in cold spots to the mid-or-upper 30s in the city. Confidence: Medium-High

A LOOK AHEAD

Wednesday features a strong upper wave passing to our northwest and north, which helps pump up the “heat.” This should be the warmest day of the year so far — at least until the weekend. Look for highs to range from the mid-50s to near 60. A cold front late in the day, or overnight, may bring increased clouds or even a quick sprinkle (10% chance), though it seems to want to pass dry. Confidence: Medium-High

If you’re liking this sunny stretch, Thursday mostly fits the bill. Clouds may increase more noticeably in the afternoon as a warm front approaches the area. Yet, for the day itself, we’re a bit cooler behind the cold front that comes through Wednesday, so highs reach near 50 to the mid-50s. Still well above normal. Confidence: Medium-High

Friday keeps the mild look, though shower potential (30% chance) Thursday night into Friday (30-40% chance) may promote extra clouds, which might help keep our surface temperatures from getting too high. I’ll play it cautious and go for near 50 and into the lower 50s for now. If we get more sunshine, temperatures could be higher. Confidence: Medium

As low pressure pumps up over the central U.S. this weekend, even milder air makes a beeline for us. Saturday temperatures back well into the 50s to near 60 may seem cool by Sunday as highs threaten to push well into the 60s or even as high as around 70. Sunday should be the peak of the warmth, as a cold front approaches the area. Confidence: Medium

By  |  05:00 AM ET, 01/07/2013

Categories:  Forecasts

 
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