Washington Dulles Airport (IAD) Weather 08/03/2026
Overnight
66
Mostly Clear
Thursday
86
Sunny
Thursday Night
66
Partly Cloudy
Friday
88
Sunny
Friday Night
68
Partly Cloudy
Saturday
89
Partly Sunny
Saturday Night
70
Chance Showers
Sunday
85
Chance Showers then Chance T-storms
Sunday Night
69
Showers Likely
Monday
83
Chance Showers then Chance T-storms
Monday Night
68
Chance T-storms then Chance Showers
Tuesday
85
Mostly Sunny then Chance Showers
Tuesday Night
69
Chance Showers then Slight Chance T-storms
Weekly Forecast
Overnight
Mostly clear, with a low around 66. Northwest wind around 9 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 86. Northwest wind 11 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Partly cloudy, with a low around 66. Northwest wind 3 to 8 mph.
Friday
Sunny, with a high near 88. Northwest wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 68. Calm wind.
Saturday
Partly sunny, with a high near 89.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 50%.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.