I-66 weather conditions near Fairfax, Virginia
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Partly Cloudy 67°F 2025-10-20T14:52:00-04:00 
Tonight 2025-10-20, Clear. Clear, with a low around 43. West wind 8 to 13 mph becoming light in the evening. Winds could gust as high as 23 mph.- Tuesday 2025-10-21, Increasing Clouds. Increasing clouds, with a high near 71. South wind 6 to 11 mph, with gusts as high as 21 mph.
Tuesday Night 2025-10-21, Chance Showers. A chance of showers, mainly between 8pm and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 47. West wind around 7 mph. Chance of precipitation is 30%.
Wednesday 2025-10-22, Sunny. Sunny, with a high near 63. West wind 7 to 17 mph, with gusts as high as 31 mph.
Wednesday Night 2025-10-22, Mostly Clear. Mostly clear, with a low around 42. West wind 6 to 8 mph.- Thursday 2025-10-23, Sunny. Sunny, with a high near 62.
- Thursday Night 2025-10-23, Mostly Clear. Mostly clear, with a low around 40.
- Friday 2025-10-24, Sunny. Sunny, with a high near 61.
Friday Night 2025-10-24, Partly Cloudy. Partly cloudy, with a low around 41.
Saturday 2025-10-25, Partly Sunny. Partly sunny, with a high near 60.
Saturday Night 2025-10-25, Mostly Cloudy. Mostly cloudy, with a low around 45.- Sunday 2025-10-26, Partly Sunny. Partly sunny, with a high near 62.
Sunday Night 2025-10-26, Mostly Cloudy then Chance Showers. A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Monday 2025-10-27, Chance Showers then Partly Sunny. A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 30%.