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: Light Rain Fog/Mist 77°F 2025-06-18T14:52:00-04:00 
This Afternoon 2025-06-18, Severe Thunderstorms. Showers and thunderstorms likely before 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. Partly sunny, with a high near 88. Southwest wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.Tonight 2025-06-18, Scattered T-storms then Mostly Clear. Scattered showers and thunderstorms before 8pm. Mostly clear, with a low around 72. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Juneteenth 2025-06-19, Sunny then T-storms Likely. A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. Increasing clouds, with a high near 92. Southwest wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night 2025-06-19, T-storms Likely then Mostly Clear. Showers and thunderstorms likely, mainly before 7pm. Partly cloudy, with a low around 65. West wind 7 to 9 mph. Chance of precipitation is 60%. 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 86. Northwest wind around 8 mph.
Friday Night 2025-06-20, Partly Cloudy. Partly cloudy, with a low around 66.- Saturday 2025-06-21, Sunny. Sunny, with a high near 91.
Saturday Night 2025-06-21, Mostly Clear. Mostly clear, with a low around 70.
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 75.
Monday 2025-06-23, Hot. Sunny and hot, with a high near 97.- Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 75.
- Tuesday 2025-06-24, Hot. Sunny and hot, with a high near 98.