Washington Dulles Airport (IAD) Weather 12/15/2025
Overnight
30
Freezing Rain Likely
Tuesday
41
Wintry Mix then Rain Likely
Tuesday Night
25
Mostly Clear
Wednesday
42
Sunny
Wednesday Night
23
Mostly Clear
Thursday
43
Partly Sunny
Thursday Night
18
Partly Cloudy
Friday
35
Mostly Cloudy
Friday Night
24
Chance Snow
Saturday
45
Partly Sunny
Saturday Night
26
Mostly Cloudy
Sunday
42
Partly Sunny
Sunday Night
25
Mostly Cloudy
Weekly Forecast
Overnight
Freezing rain likely, mainly after 5am. Cloudy, with a low around 30. Light southeast wind. Chance of precipitation is 60%. Little or no ice accumulation expected.
Tuesday
Rain, snow, and sleet before 1pm, then a chance of rain between 1pm and 3pm. High near 41. Calm wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
Tuesday Night
Mostly clear, with a low around 25. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 42. Northwest wind around 6 mph becoming calm in the afternoon.
Wednesday Night
Mostly clear, with a low around 23. Light and variable wind.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Mostly cloudy, with a high near 35.
Friday Night
A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 45.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 42.
Sunday Night
Mostly cloudy, with a low around 25.