I-66 weather conditions near Fairfax, Virginia

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy and Breezy 34°F 2025-12-11T09:52:00-05:00
• Today 2025-12-11, Sunny. Sunny, with a high near 37. West wind 13 to 16 mph, with gusts as high as 30 mph.
• Tonight 2025-12-11, Increasing Clouds. Increasing clouds, with a low around 26. Southwest wind 3 to 8 mph.
• Friday 2025-12-12, Slight Chance Snow. A slight chance of snow. Mostly cloudy, with a high near 37. Calm wind becoming west around 6 mph. Chance of precipitation is 20%.
• Friday Night 2025-12-12, Chance Snow. A chance of snow before 1am. Mostly cloudy, with a low around 28. Calm wind. Chance of precipitation is 30%.
• Saturday 2025-12-13, Mostly Cloudy. Mostly cloudy, with a high near 43. Southwest wind 3 to 8 mph.
• Saturday Night 2025-12-13, Chance Rain/Snow then Rain/Snow Likely. Snow likely, possibly mixed with rain, becoming all snow after 4am. Cloudy, with a low around 24. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
• Sunday 2025-12-14, Chance Snow. A chance of snow before 1pm. Partly sunny, with a high near 31. Chance of precipitation is 40%.
• Sunday Night 2025-12-14, Mostly Clear. Mostly clear, with a low around 18.
• 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 19.
• Tuesday 2025-12-16, Mostly Sunny. Mostly sunny, with a high near 37.
• Tuesday Night 2025-12-16, Partly Cloudy. Partly cloudy, with a low around 24.
• Wednesday 2025-12-17, Partly Sunny. Partly sunny, with a high near 43.