I-66 weather conditions near Fairfax, Virginia

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 41°F 2025-11-20T05:52:00-05:00
• Today 2025-11-20, Mostly Cloudy. Mostly cloudy, with a high near 50. Light and variable wind.
• Tonight 2025-11-20, Cloudy. Cloudy, with a low around 41. Calm wind.
• Friday 2025-11-21, Chance Rain. A chance of rain, mainly after 1pm. Cloudy, with a high near 56. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.
• Friday Night 2025-11-21, Rain. Rain. Low around 48. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
• Saturday 2025-11-22, Chance Rain. A chance of rain before 1pm. Partly sunny, with a high near 57. North wind 7 to 9 mph. Chance of precipitation is 30%.
• Saturday Night 2025-11-22, Partly Cloudy. Partly cloudy, with a low around 34.
• Sunday 2025-11-23, Sunny. Sunny, with a high near 54.
• Sunday Night 2025-11-23, Mostly Clear. Mostly clear, with a low around 39.
• Monday 2025-11-24, Mostly Sunny. Mostly sunny, with a high near 58.
• Monday Night 2025-11-24, Mostly Cloudy. Mostly cloudy, with a low around 41.
• Tuesday 2025-11-25, Mostly Cloudy then Chance Rain. A chance of rain. Mostly cloudy, with a high near 56. Chance of precipitation is 30%.
• Tuesday Night 2025-11-25, Rain Likely. Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
• Wednesday 2025-11-26, Mostly Sunny. Mostly sunny, with a high near 65.