I-66 weather conditions near Washington, District of Columbia
Roadnow AI Agent Live Update
Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: A Few Clouds 22°F 2025-12-09T05:52:00-05:00 
Today 2025-12-09, Mostly Sunny. Mostly sunny, with a high near 36. Calm wind becoming south 5 to 9 mph in the afternoon.
Tonight 2025-12-09, Partly Cloudy. Partly cloudy, with a low around 29. South wind 7 to 9 mph.
Wednesday 2025-12-10, Chance Rain. A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 47. South wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.- Wednesday Night 2025-12-10, Partly Cloudy. Partly cloudy, with a low around 33. Southwest wind around 10 mph, with gusts as high as 20 mph.
- Thursday 2025-12-11, Mostly Sunny. Mostly sunny, with a high near 41. West wind 10 to 13 mph, with gusts as high as 22 mph.
Thursday Night 2025-12-11, Mostly Cloudy. Mostly cloudy, with a low around 27.
Friday 2025-12-12, Partly Sunny. Partly sunny, with a high near 40.
Friday Night 2025-12-12, Chance Snow. A chance of snow before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.- Saturday 2025-12-13, Partly Sunny. Partly sunny, with a high near 43.
Saturday Night 2025-12-13, Mostly Cloudy then Chance Snow. A chance of snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
- Sunday 2025-12-14, Mostly Sunny. Mostly sunny, with a high near 36.
- Sunday Night 2025-12-14, Mostly Clear. Mostly clear, with a low around 17.
- Monday 2025-12-15, Mostly Sunny. Mostly sunny, with a high near 33.