D.C. area forecast: Comfortable before Sunday storm threat; colder next week

December 27, 2013

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 1 to 10.

7
Light breeze means a bit warmer temps should feel more comfortable than Thursday. Ready to thaw?

Express Forecast

Today: Mostly sunny, less breeze. Highs: Mid-40s to low 50s.

Tonight: Mainly clear, chilly. Lows: Low 20s to around 30.

Tomorrow: Mainly sunny, warmer. Highs: Mid-50s.

Sunday: Mostly cloudy, periods of showers or rain. Near 40 to mid-40s.

FORECAST IN DETAIL

Temperature Map

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

Winter chill takes a brief respite the next few days, but it won’t last much beyond that. Sunday’s looking potentially wet and cool—perhaps I can label it as a raw day? At least we may get some rain, which we can’t easily refuse during this typically drier time of year. Winter makes a blustery return by late Monday, though, with continued Arctic air spilling into the area on Tuesday.

Today (Friday): Skies stay bright and more sunny than not, with slightly less wind than yesterday. Southwest breezes should be rather tame, around 5 mph. High temperatures top out in at least the mid-to-upper 40s, but especially south of town low 50s cannot be ruled out completely. This assumes full sunshine and continuous southwesterly flow easing in our slightly warmer air mass. Confidence: High

Tonight: Conditions remain calm and skies fairly clear so temperatures should fall noticeably toward pre-sunrise minimums around 30 downtown to the low 20s well north and west of the Beltway. A southwest breeze may continue around 5 mph at times. Confidence: High

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

Tomorrow (Saturday): Temperatures are a notch warmer, with highs likely headed for the mid-50s or thereabouts. Because of very sunny skies, some spots south of town could heat up toward the 60 degree mark? We’ll have to see! Southwesterly winds around 5 mph do increase chances that we continue to see a subtle feed of warmer air. Confidence: Medium-High

Tomorrow night: Partly cloudy conditions may persist with a general increase in cloudiness. Because of some of these clouds moving in, and the southwesterly breeze occasionally felt (lightly), we should stay in the mid-to-upper 30s — downtown could stay around 40. Confidence: Medium-High

Sunday: It’s not looking great. Showers are likely by the sunrise period with some times of just downright rain possible, particularly as you head east. It could starts as a brief mix north and west, but this is a rain event for our area. Increasing wind could start blowing out of the north-northeast as well. Overall there is a 60-70% chance of rain and a couple spots could pick up nearly an inch, but that estimate could be a bit high as there’s still some chance the storm tries to impact places to our east most heavily. High temperatures in the near 40 to mid-40s range don’t make it a very comfortable day sans sunshine. Should the rain trend light and east, temps would be up. Confidence: Medium

A LOOK AHEAD

Sunday night: Clouds clear very slowly as showers (20-30% chance) taper quickly. Winds shift toward the northwest as temperatures cool toward the freezing mark well outside the Beltway, but perhaps staying in the upper 30s downtown. Confidence: Medium

Monday’s skies may have some periodic clouds as northwesterly breezes try to clear us, cool us, and dry us out. We’re still not heavily into the upcoming cold air mass yet, so highs should strive to head into and through the 40s.  With winds tending to increase from the northwest and north any mildness may be offset. Winter arrives for its next visit! Confidence: Low-Medium

Tuesday’s much colder morning commute should encourage sweaters and heavy coats (again). Sunny skies may not boost our high temperatures much above freezing, to perhaps the mid-30s for most of us. Breezes are likely to remain up enough to want to do what’s needed to guard against them! Confidence: Low-Medium

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Jason Samenow · December 26, 2013