I-66 weather conditions near Fairfax, Virginia

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 73°F 2025-06-19T17:52:00-04:00
• Tonight 2025-06-19, Severe Thunderstorms then Clear. Showers and thunderstorms likely before 9pm, then isolated showers between 9pm and 10pm. Some of the storms could be severe. Mostly cloudy during the early evening, then gradual clearing, with a low around 63. Southwest wind 9 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Friday 2025-06-20, Sunny. Sunny, with a high near 87. West wind around 8 mph.
• Friday Night 2025-06-20, Partly Cloudy. Partly cloudy, with a low around 67. Light southwest wind.
• Saturday 2025-06-21, Sunny. Sunny, with a high near 92. Calm wind becoming southwest 5 to 7 mph in the afternoon.
• Saturday Night 2025-06-21, Partly Cloudy. Partly cloudy, with a low around 72. South wind around 6 mph.
• Sunday 2025-06-22, Hot. Sunny and hot, with a high near 97.
• Sunday Night 2025-06-22, Mostly Clear. Mostly clear, with a low around 76.
• Monday 2025-06-23, Hot. Sunny and hot, with a high near 98.
• 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 100.
• Tuesday Night 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 78.
• Wednesday 2025-06-25, Hot. Mostly sunny and hot, with a high near 98.
• Wednesday Night 2025-06-25, Chance Showers. A chance of showers. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
• Thursday 2025-06-26, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 30%.