D.C. area forecast: Clouds keep temps down today, not Friday; Arctic slap in face Sunday

November 21, 2013

Today’s Daily Digit

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

6
Clouds quickly obscure the sun and scare away a warm day.

Express Forecast

Today: Rapidly increasing clouds, calm. Highs: 50-54.

Tonight: Cloudy, sprinkles possible late. Lows: 37-43.

Tomorrow: Mainly cloudy, breezy. Highs: 58-62.

FORECAST IN DETAIL

Temperature Map

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

The next couple of days do not offer much sun but temps recover by Friday for a fine fall day. Showers ahead of an Arctic front Friday night will amount to little more than slick roads as wet leaves may need to be negotiated early Saturday. But the real fun is reserved for Saturday night into Sunday when the cold air comes pile driving into the area. Anyone planning a Saturday night on the town had better bundle up as it will go from cold to frigid during the evening as strong winds foster “leafnadoes”. Monday morning threatens to be the coldest of the season thus far.

Today (Thursday): A glimpse of sunrise is possible but for the rest of the day, only an occasional ray sneaks through a mainly cloudy sky. Temperatures slowly climb into the lower 50s for most areas. Winds are calm so it should not feel bad. Confidence: Medium-High

Tonight: The skies remain obscured. There is just enough moisture coming up from the south to give the area a chance for a smattering of sprinkles late night. Winds remain calm. Lows range from upper 30s burbs to lower 40s downtown. Confidence: Medium-High

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

Tomorrow (Friday): The sun still is at a distinct disadvantage as moisture continues to stream up from the south but shower chances are minimal as the warm front is now to our north. The result of that will be winds out of the south at 5-10 mph and much nicer highs, ranging from upper 50s to lower 60s. Confidence: Medium-High

Tomorrow night: The chance for showers picks up during the evening (60% probability). However, we are talking the tenth of an inch variety. Breezes out of the northwest at 5-10 mph are not a challenge. Lows are kindly, holding in the mid-to-upper 40s. Confidence: Medium-High

A LOOK AHEAD

Saturday is likely to clear out early on with just a 20% chance of measurable dawn showers. Even though the official cold front has passed through, witnessed by north winds, temperatures should be pleasant. Highs top out in the low-to-mid 50s. The problem is the Arctic air is banking up on the west side of the Appalachians preparing for a nighttime assault. You may be tempted to only wear a light jacket if you go out early in the evening. Do not, repeat do not attempt this! The true cold air comes surging in with winds likely to climb to the 20s to 30s mph and higher gusts and rapidly falling temperatures. By late night lows should end up in the mid-to-upper 20s.  Confidence: Medium

Sunday is no fun. Windy and cold are the watchwords with the only consolation being a mainly sunny sky. Highs do not make it out of the 30s and most of those are only mid-30s. High pressure drops winds rapidly by nightfall but it is not getting any warmer. In fact, colder spots are likely to see upper teens for lows and even downtown is in the mid-20s. Confidence: Medium-High

Monday is a perfectly sunny day but the temperatures are still in a pit. Highs do no better than upper 30s to lower 40s. Confidence: Medium

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