I-66 weather conditions near Washington, District of Columbia
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: A Few Clouds 46°F 2025-11-13T22:52:00-05:00 
Tonight 2025-11-13, Clear. Clear, with a low around 36. West wind 3 to 6 mph.
Friday 2025-11-14, Sunny. Sunny, with a high near 57. West wind 5 to 9 mph.
Friday Night 2025-11-14, Mostly Cloudy. Mostly cloudy, with a low around 42. Calm wind.
Saturday 2025-11-15, Mostly Cloudy. Mostly cloudy, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon.
Saturday Night 2025-11-15, Chance Rain. A chance of rain. Mostly cloudy, with a low around 54. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Sunday 2025-11-16, Mostly Sunny. Mostly sunny, with a high near 65.- Sunday Night 2025-11-16, Mostly Clear. Mostly clear, with a low around 39.
- Monday 2025-11-17, Sunny. Sunny, with a high near 54.
Monday Night 2025-11-17, Partly Cloudy. Partly cloudy, with a low around 35.Tuesday 2025-11-18, Partly Sunny then Chance Rain. A chance of rain after 1pm. Partly sunny, with a high near 50. Chance of precipitation is 30%.
- Tuesday Night 2025-11-18, Mostly Cloudy. Mostly cloudy, with a low around 38.
- Wednesday 2025-11-19, Partly Sunny. Partly sunny, with a high near 55.
- Wednesday Night 2025-11-19, Mostly Cloudy. Mostly cloudy, with a low around 39.
- Thursday 2025-11-20, Mostly Cloudy. Mostly cloudy, with a high near 58.