I-66 weather conditions near Fairfax, Virginia

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 38°F 2025-12-11T13:52:00-05:00
• This Afternoon 2025-12-11, Sunny. Sunny, with a high near 37. West wind around 15 mph, with gusts as high as 29 mph.
• Tonight 2025-12-11, Increasing Clouds. Increasing clouds, with a low around 26. West wind 3 to 7 mph.
• Friday 2025-12-12, Partly Sunny. Partly sunny, with a high near 38. Calm wind becoming southwest around 6 mph.
• Friday Night 2025-12-12, Mostly Cloudy. Mostly cloudy, with a low around 26. Calm wind.
• Saturday 2025-12-13, Mostly Cloudy. Mostly cloudy, with a high near 45. Southwest wind 3 to 7 mph.
• Saturday Night 2025-12-13, Chance Rain/Snow then Snow. A chance of rain and snow before 10pm, then snow. Low around 25. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
• Sunday 2025-12-14, Chance Snow. A chance of snow before 1pm. Mostly sunny, with a high near 29. Chance of precipitation is 30%.
• Sunday Night 2025-12-14, Partly Cloudy. Partly cloudy, with a low around 17.
• Monday 2025-12-15, Mostly Sunny. Mostly sunny, with a high near 31.
• Monday Night 2025-12-15, Partly Cloudy. Partly cloudy, with a low around 20.
• Tuesday 2025-12-16, Mostly Sunny. Mostly sunny, with a high near 38.
• Tuesday Night 2025-12-16, Partly Cloudy. Partly cloudy, with a low around 25.
• Wednesday 2025-12-17, Partly Sunny. Partly sunny, with a high near 46.