PM Update: Chilly and periodically cloudy this evening. Breezy again tomorrow.

Oh, and you can blame our cloud development on vorticity (explained)
By A. Camden Walker

We may still see a few peeks of sunshine before sunset today (4:48 p.m.), but overall, skies are mostly cloudy. Afternoon high temperatures are generally in the 40s, with areas northwest of town stuck in the low 40s, and a couple of spots nearing 50 degrees southeast of town. Any breeziness should calm overnight, but westerly 20 mph gusts are likely again tomorrow. The thermometer and wind chill may be about 10 degrees chillier tomorrow.

Through Tonight: Northwesterly breezes quickly head toward nearly calm conditions, especially after midnight. Cloudiness in the evening may ease a bit with time. Low temperatures bottom out in the mid-20s in the clearest, calmest spots west and north of town. Areas near the Beltway may only drop to the mid-30s.

Tomorrow (Sunday): We likely run several degrees chillier than Saturday, with temperatures only reaching the upper 30s to low 40s. With west-northwesterly breezes occasionally gusting to near 25 mph, wind chills may top out in the mid-30s at best. Skies are again partly sunny, with brightest hours likelier in the morning.

https://www.washingtonpost.com/weather/2022/12/17/weather-cloudy-breezy-chilly/?