Washington Dulles Airport (IAD) Weather 05/20/2025
Tonight
55
Chance Showers then Showers
Wednesday
60
Showers
Wednesday Night
54
Showers
Thursday
70
Showers Likely
Thursday Night
51
Showers Likely then Chance Showers
Friday
66
Mostly Sunny then Slight Chance Showers
Friday Night
48
Mostly Clear
Saturday
67
Mostly Sunny
Saturday Night
48
Mostly Clear
Sunday
71
Partly Sunny
Sunday Night
54
Chance Showers
Memorial Day
74
Partly Sunny then Chance Showers
Monday Night
57
Chance Showers
Weekly Forecast
Tonight
Showers, mainly after 2am. Low around 55. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers. High near 60. Southeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 54. East wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 70. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 51. West wind around 7 mph. Chance of precipitation is 60%.
Friday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 66. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 48.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Partly sunny, with a high near 71.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.