I-66 weather conditions near Fairfax, Virginia
Roadnow AI Agent Live Update
Seasoned Weather Conditions
Current Weather Conditions
click anywhere on map to change location
7 day weather forecast
Current condition: Light Rain Fog/Mist 66°F 2025-06-17T03:52:00-04:00 
Overnight 2025-06-17, Chance Showers and Patchy Fog. A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 66. Light east wind. Chance of precipitation is 30%.Tuesday 2025-06-17, Chance Showers and Patchy Fog then Slight Chance T-storms. A chance of rain before 11am, then a slight chance of showers and thunderstorms after 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 82. South wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday Night 2025-06-17, Chance T-storms. A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 71. Southeast wind around 6 mph. Chance of precipitation is 40%.Wednesday 2025-06-18, Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 92. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night 2025-06-18, Showers Likely then Mostly Clear. Showers likely and possibly a thunderstorm before 8pm. Mostly clear, with a low around 73. Southwest wind around 6 mph. Chance of precipitation is 60%.
Juneteenth 2025-06-19, Sunny then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 60%.
Thursday Night 2025-06-19, Showers Likely then Mostly Clear. Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 60%.
Friday 2025-06-20, Sunny. Sunny, with a high near 88.
Friday Night 2025-06-20, Partly Cloudy. Partly cloudy, with a low around 68.- Saturday 2025-06-21, Sunny. Sunny, with a high near 92.
- Saturday Night 2025-06-21, Partly Cloudy. Partly cloudy, with a low around 73.
Sunday 2025-06-22, Hot. Mostly 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 99.