I-66 weather conditions near Fairfax, Virginia

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 44°F 2025-11-19T11:52:00-05:00
• This Afternoon 2025-11-19, Cloudy. Cloudy, with a high near 49. North wind around 8 mph.
• Tonight 2025-11-19, Mostly Cloudy. Mostly cloudy, with a low around 38. Light north wind.
• Thursday 2025-11-20, Mostly Cloudy. Mostly cloudy, with a high near 52. Light and variable wind.
• Thursday Night 2025-11-20, Mostly Cloudy. Mostly cloudy, with a low around 42. Calm wind.
• Friday 2025-11-21, Chance Rain. A chance of rain. Cloudy, with a high near 57. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 40%.
• Friday Night 2025-11-21, Rain. Rain. Low around 49. Chance of precipitation is 80%.
• Saturday 2025-11-22, Chance Rain. A chance of rain before 1pm. Partly sunny, with a high near 59. Chance of precipitation is 30%.
• Saturday Night 2025-11-22, Partly Cloudy. Partly cloudy, with a low around 36.
• Sunday 2025-11-23, Mostly Sunny. Mostly sunny, with a high near 55.
• Sunday Night 2025-11-23, Partly Cloudy. Partly cloudy, with a low around 37.
• Monday 2025-11-24, Mostly Sunny. Mostly sunny, with a high near 60.
• Monday Night 2025-11-24, Mostly Cloudy. Mostly cloudy, with a low around 43.
• Tuesday 2025-11-25, Mostly Cloudy. Mostly cloudy, with a high near 57.