D.C. area forecast: Wicked winter rewind today; mild by Saturday but then snow risk Sunday night

** Red flag warning for counties west of I-95 | Power outage tracker **

Today’s Daily Digit

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

2
It would be a one if not for the sun.

Express Forecast

Today: Sunny, windy, cold.  Highs: 33-39.

Tonight: Mostly clear, breezy. Lows: 17-25.

Tomorrow: Mostly sunny. Highs: 54-58.

FORECAST IN DETAIL

Temperature Map

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

Ouch.  After springlike warmth the last few days, the wind-swept morning chill may sting more than usual. In place of yesterday’s 60s to near 70, we have 20s and 30s with nasty wind chills in the single digits and teens.  The only solace is some solid sunshine.  Otherwise, we slide into another hard freeze tonight before temperatures rebound closer to normal tomorrow afternoon.  The weekend starts a bit warmer than normal, but then trends cooler Sunday followed by a risk of mixed precipitation Sunday night into Monday.

Today (Thursday): Brace  yourselves for a punishing springtime rebuke with morning temperatures in the 20s that move ever-so-slowly into the 30s by midday and afternoon.  Winds from the northwest at 20-30 mph occasionally gust as high as 40 with early morning wind chills in the single digits and midday to afternoon chills in the teens and 20s.  Sunny skies help at least, but not enough to offset the high winds and cold temperatures.  Confidence: High

Tonight: Temperatures fall quickly back into the 20s in the evening with winds still running 15-25 mph before fading toward midnight.  Lows toward dawn range from the upper teens in the outer suburbs to the low-to-mid 20s in the city as skies are mostly clear. Confidence: High

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

Tomorrow (Friday): Mostly sunny skies with temperatures warming more quickly through the day to peak in the middle 50s range by afternoon.  Winds shift to come from the south and west at 5 to 10 mph to aid in the moderating trend.  Confidence: High

Tomorrow night: Partly cloudy with lows in the middle to upper 30s.  Light winds.  Confidence: High

A LOOK AHEAD

Snow Potential Index

A daily assessment of the potential for at least ~1″ of snow in the next week, on a 0-10 scale. More info

2 (→) Still a looming threat Sun PM-Monday, but still no clarity on whether temps and moisture support notable accumulations.

Saturday starts in the 30s to low 40s during the Rock ‘n’ Roll DC marathon and half-marathon along with a slight risk of light showers under partly cloudy skies, but the afternoon should be up into the lower to middle 60s now with partly sunny skies. Partly cloudy with lows in the upper 30s to low 40s Saturday night.  Confidence: Medium

Sunday finds the story getting more complicated as different air masses converge on the area.  Cold weather from the north slides down into the region, while clouds approach from the south.  Highs only manage in the 40s (below normal at this point in mid-March) with a risk of showers by afternoon.  Sunday night could see more mostly light rain and snow mix with a risk of changing over to all snow at some point between midnight and dawn.  Some accumulation is also possible by dawn especially in our colder areas to the west and north, so stay tuned for updates! Confidence: Low

Monday may see linger light mixed precipitation or snow into about the midday hours before some clearing by afternoon.  But temperatures look to remain well below normal by only reach the upper 30s to low 40s by afternoon. Confidence: Low

Also on Capital Weather Gang

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