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I-66 weather conditions near Fairfax, Virginia

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       Current Weather Conditions

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7 day weather forecast

  • Current condition: Mostly Cloudy 73°F 2025-06-13T00:52:00-04:00
  • Overnight 2025-06-13, Mostly Cloudy. Mostly cloudy, with a low around 71. Calm wind.
  • Friday 2025-06-13, Mostly Cloudy then Chance T-storms. A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.
  • Friday Night 2025-06-13, Showers Likely. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 70. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Saturday 2025-06-14, Chance Showers then Showers. A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 84. North wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Saturday Night 2025-06-14, Showers then Chance Showers. Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Low around 67. East wind 3 to 6 mph. Chance of precipitation is 80%.
  • Sunday 2025-06-15, Chance Showers then Showers. A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 77. Chance of precipitation is 80%.
  • Sunday Night 2025-06-15, Showers. Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 66. Chance of precipitation is 80%.
  • Monday 2025-06-16, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
  • Monday Night 2025-06-16, Showers Likely. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
  • Tuesday 2025-06-17, Chance Showers then Chance T-storms. A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
  • Tuesday Night 2025-06-17, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
  • Wednesday 2025-06-18, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
  • Wednesday Night 2025-06-18, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
  • Juneteenth 2025-06-19, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.





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