I-66 weather conditions near Washington, District of Columbia
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Mostly Cloudy 67°F 2025-03-31T00:52:00-04:00 
Overnight 2025-03-31, Isolated Showers. Isolated showers after 3am. Mostly cloudy, with a low around 66. South wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.Monday 2025-03-31, Scattered Showers then Showers Likely. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 82. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night 2025-03-31, Severe Thunderstorms then Scattered Showers. Showers and thunderstorms before 2am, then isolated showers between 2am and 3am. Some of the storms could be severe. Low around 44. West wind 8 to 13 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday 2025-04-01, Sunny. Sunny, with a high near 60. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday Night 2025-04-01, Mostly Clear. Mostly clear, with a low around 43. Light east wind.
Wednesday 2025-04-02, Partly Sunny. Partly sunny, with a high near 62.- Wednesday Night 2025-04-02, Mostly Cloudy. Mostly cloudy, with a low around 54.
Thursday 2025-04-03, Cloudy then Chance Showers. A chance of showers after 2pm. Cloudy, with a high near 82. Chance of precipitation is 30%.
Thursday Night 2025-04-03, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Friday 2025-04-04, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.
Friday Night 2025-04-04, Chance Showers. A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Saturday 2025-04-05, Showers Likely. Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.- Saturday Night 2025-04-05, Chance Showers. A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
- Sunday 2025-04-06, Showers Likely. Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.