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: A Few Clouds 96°F 2025-06-24T17:52:00-04:00
Tonight 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 77. Light northwest wind.
Wednesday 2025-06-25, Hot. Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night 2025-06-25, Chance T-storms. A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 75. Light north wind. Chance of precipitation is 30%.
Thursday 2025-06-26, Slight Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night 2025-06-26, Showers Likely. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday 2025-06-27, Chance Showers then Showers Likely. A chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Friday Night 2025-06-27, 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 72. Chance of precipitation is 60%.
Saturday 2025-06-28, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Saturday Night 2025-06-28, Chance T-storms. A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Sunday 2025-06-29, Mostly Sunny then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 60%.
Sunday Night 2025-06-29, Showers Likely then Chance T-storms. Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Monday 2025-06-30, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Monday Night 2025-06-30, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
Tuesday 2025-07-01, Mostly Sunny then Showers Likely. Showers likely and possibly a thunderstorm. Partly sunny, with a high near 93. Chance of precipitation is 60%.
Current condition: A Few Clouds 96°F 2025-06-24T17:52:00-04:00 
Tonight 2025-06-24, Partly Cloudy. Partly cloudy, with a low around 77. Light northwest wind.
Wednesday 2025-06-25, Hot. Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night 2025-06-25, Chance T-storms. A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 75. Light north wind. Chance of precipitation is 30%.Thursday 2025-06-26, Slight Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night 2025-06-26, Showers Likely. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.Friday 2025-06-27, Chance Showers then Showers Likely. A chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Friday Night 2025-06-27, 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 72. Chance of precipitation is 60%.
Saturday 2025-06-28, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Saturday Night 2025-06-28, Chance T-storms. A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.Sunday 2025-06-29, Mostly Sunny then Showers Likely. Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 60%.
Sunday Night 2025-06-29, Showers Likely then Chance T-storms. Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Monday 2025-06-30, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 50%.
Monday Night 2025-06-30, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.