I-66 weather conditions near Mount Vernon, Virginia
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Light Rain 69°F 2025-06-27T11:52:00-04:00
This Afternoon 2025-06-27, Scattered T-storms and Patchy Fog. Scattered showers and thunderstorms, mainly after 5pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 75. East wind 6 to 8 mph. Chance of precipitation is 40%.
Tonight 2025-06-27, Scattered T-storms. Scattered showers and thunderstorms, mainly between 7pm and 2am. Mostly cloudy, with a low around 71. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 50%.
Saturday 2025-06-28, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 50%.
Saturday Night 2025-06-28, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Light southwest wind. Chance of precipitation is 30%.
Sunday 2025-06-29, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night 2025-06-29, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Monday 2025-06-30, Partly Sunny then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 60%.
Monday Night 2025-06-30, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Tuesday 2025-07-01, Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Tuesday Night 2025-07-01, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday 2025-07-02, Mostly Sunny. Mostly sunny, with a high near 90.
Wednesday Night 2025-07-02, Partly Cloudy. Partly cloudy, with a low around 69.
Thursday 2025-07-03, Sunny. Sunny, with a high near 90.
Current condition: Light Rain 69°F 2025-06-27T11:52:00-04:00 
This Afternoon 2025-06-27, Scattered T-storms and Patchy Fog. Scattered showers and thunderstorms, mainly after 5pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 75. East wind 6 to 8 mph. Chance of precipitation is 40%.
Tonight 2025-06-27, Scattered T-storms. Scattered showers and thunderstorms, mainly between 7pm and 2am. Mostly cloudy, with a low around 71. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 50%.Saturday 2025-06-28, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 50%.
Saturday Night 2025-06-28, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Light southwest wind. Chance of precipitation is 30%.
Sunday 2025-06-29, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night 2025-06-29, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Monday 2025-06-30, Partly Sunny then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 60%.
Monday Night 2025-06-30, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Tuesday 2025-07-01, Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Tuesday Night 2025-07-01, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
Wednesday 2025-07-02, Mostly Sunny. Mostly sunny, with a high near 90.
Wednesday Night 2025-07-02, Partly Cloudy. Partly cloudy, with a low around 69.
Thursday 2025-07-03, Sunny. Sunny, with a high near 90.