A tiny sparrow braves the winter chill. (Zsja /Zsja(Flickr))

* Wind advisory until 7 p.m. | Wind chill advisory from 10 p.m. Sunday through 11 a.m. Monday *

Howling winds from the northwest sent temperatures tumbling 20 to 25 degrees Sunday, falling below the freezing mark by late this afternoon. Temperatures will continue to free-fall, and the winds will continue cranking, resulting in widespread negative wind-chill values overnight and into tomorrow morning.

Do make sure you bundle up and limit skin exposure should you feel the need to venture outdoors through Monday morning — for example, to see the total lunar eclipse tonight.

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Through Tonight: Tonight will easily be the most frigid night of the winter so far, with bitterly cold temperatures and dangerously low wind-chill values. Around the metro area, low temperatures will range from 8 to 13 degrees. Sustained northwest winds at 20 to 25 mph, with higher gusts, will make it feel much colder. Depending on location, wind-chill values will range from minus-5 to minus-15 degrees.

Forecast wind chill at 8 a.m. Monday from HRRR model.

View the current weather at The Washington Post.

Tomorrow (Monday): The cold and blustery conditions persist through the holiday. Negative wind-chill values will remain in place through the morning. We’ll have plenty of sunshine, but high temperatures will struggle to break out of the low 20s, exacerbated by a bitter wind chill. Winds from the northwest will persist at around 20 mph, with gusts to 30 to 40 mph, meaning wind-chill values do not do better than the single digits even into the afternoon.

Very cold but not as windy tomorrow night. Lows range from 5 to 10 degrees in our colder areas to near 15 downtown. Winds from the northwest at 10 to 15 mph produce wind-chill values from around zero to the single digits.

See Brian Jackson’s forecast through next week. And if you haven’t already, join us on Facebook and follow us on Twitter and Instagram. For related traffic news, check out Gridlock.

Did I mention that it was windy? Did you notice the window-rattling gusts of wind this afternoon? Gusts in the range of 40 to 50 mph were recorded throughout the region (full list). Catholic University even clocked a 51 mph gust. The wind has toppled some trees and, with strong gusts winds persisting for 18 to 24 more hours, a few more could come down.

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