I-66 weather conditions near Fairfax, Virginia

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 73°F 2025-06-19T02:52:00-04:00
• Overnight 2025-06-19, Mostly Clear. Mostly clear, with a low around 72. Southwest wind around 7 mph.
• Juneteenth 2025-06-19, Sunny then T-storms. A chance of showers and thunderstorms before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 92. Southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Thursday Night 2025-06-19, Chance T-storms then Mostly Clear. A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 64. Southwest wind 10 to 13 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
• Friday 2025-06-20, Sunny. Sunny, with a high near 86. West wind 7 to 9 mph.
• Friday Night 2025-06-20, Mostly Clear. Mostly clear, with a low around 67. Light southwest wind.
• Saturday 2025-06-21, Sunny. Sunny, with a high near 90.
• Saturday Night 2025-06-21, Partly Cloudy. Partly cloudy, with a low around 71.
• Sunday 2025-06-22, Mostly Sunny. Mostly sunny, with a high near 95.
• Sunday Night 2025-06-22, Mostly Clear. Mostly clear, with a low around 76.
• Monday 2025-06-23, Sunny. Sunny, with a high near 96.
• Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 77.
• Tuesday 2025-06-24, Hot. Sunny and hot, with a high near 98.
• Tuesday Night 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 76.
• Wednesday 2025-06-25, Sunny. Sunny, with a high near 96.