I-66 weather conditions near Washington, District of Columbia
Roadnow AI Agent Live Update
Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Mostly Cloudy 70°F 2025-09-15T23:52:00-04:00 - Overnight 2025-09-16, Mostly Cloudy. Mostly cloudy, with a low around 62. Northeast wind around 9 mph.
Tuesday 2025-09-16, Showers Likely. Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 72. Northeast wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night 2025-09-16, Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Cloudy, with a low around 61. Northeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday 2025-09-17, Showers Likely. Showers likely, mainly before 2pm. Cloudy, with a high near 70. North wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night 2025-09-17, Chance Showers. A chance of showers, mainly before 2am. Cloudy, with a low around 63. North wind 3 to 6 mph. Chance of precipitation is 30%.
Thursday 2025-09-18, Partly Sunny. Partly sunny, with a high near 80.
Thursday Night 2025-09-18, Mostly Clear. Mostly clear, with a low around 62.
Friday 2025-09-19, Sunny. Sunny, with a high near 87.- Friday Night 2025-09-19, Mostly Clear. Mostly clear, with a low around 63.
- Saturday 2025-09-20, Sunny. Sunny, with a high near 79.
Saturday Night 2025-09-20, Partly Cloudy. Partly cloudy, with a low around 62.- Sunday 2025-09-21, Partly Sunny. Partly sunny, with a high near 77.
- Sunday Night 2025-09-21, Partly Cloudy. Partly cloudy, with a low around 61.
Monday 2025-09-22, Mostly Sunny. Mostly sunny, with a high near 80.