I-66 weather conditions near Fairfax, Virginia

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Overcast 65°F 2025-09-17T23:52:00-04:00
• Overnight 2025-09-18, Mostly Cloudy. Mostly cloudy, with a low around 63. North wind around 6 mph.
• Thursday 2025-09-18, Decreasing Clouds. Mostly cloudy, then gradually becoming sunny, with a high near 82. North wind around 6 mph.
• Thursday Night 2025-09-18, Mostly Clear. Mostly clear, with a low around 61. Southwest wind 3 to 5 mph.
• Friday 2025-09-19, Sunny. Sunny, with a high near 86. Northwest wind around 6 mph.
• Friday Night 2025-09-19, Partly Cloudy. Partly cloudy, with a low around 63. Calm wind becoming northeast around 6 mph after midnight.
• Saturday 2025-09-20, Mostly Sunny. Mostly sunny, with a high near 79.
• Saturday Night 2025-09-20, Mostly Cloudy. Mostly cloudy, with a low around 62.
• Sunday 2025-09-21, Mostly Cloudy. Mostly cloudy, with a high near 78.
• Sunday Night 2025-09-21, Partly Cloudy. Partly cloudy, with a low around 61.
• Monday 2025-09-22, Partly Sunny. Partly sunny, with a high near 80.
• Monday Night 2025-09-22, Partly Cloudy. Partly cloudy, with a low around 62.
• Tuesday 2025-09-23, Partly Sunny. Partly sunny, with a high near 82.
• Tuesday Night 2025-09-23, Partly Cloudy. Partly cloudy, with a low around 63.
• Wednesday 2025-09-24, Mostly Sunny. Mostly sunny, with a high near 83.