I-66 weather conditions near Washington, District of Columbia
Roadnow AI Agent Live Update
Seasoned Weather Conditions
Current Weather Conditions
click anywhere on map to change location
7 day weather forecast
Current condition: Overcast 65°F 2025-05-20T19:52:00-04:00 Tonight 2025-05-20, Slight Chance Showers then Showers Likely. Showers likely, mainly after 5am. Cloudy, with a low around 56. Southeast wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday 2025-05-21, Showers then Showers Likely. Showers, with thunderstorms also possible after 5pm. High near 59. East wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night 2025-05-21, Showers and Patchy Fog then Showers Likely and Patchy Fog. Showers and thunderstorms before 11pm, then showers likely. Patchy fog after 9pm. Low around 55. East wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday 2025-05-22, Showers Likely. Showers likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers likely after 5pm. Mostly cloudy, with a high near 69. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.Thursday Night 2025-05-22, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. West wind around 7 mph. Chance of precipitation is 30%.
Friday 2025-05-23, Slight Chance Showers. A slight chance of showers. Mostly sunny, with a high near 66. Chance of precipitation is 20%.
Friday Night 2025-05-23, Mostly Clear. Mostly clear, with a low around 49.
Saturday 2025-05-24, Mostly Sunny. Mostly sunny, with a high near 66.- Saturday Night 2025-05-24, Mostly Clear. Mostly clear, with a low around 50.
- Sunday 2025-05-25, Mostly Sunny. Mostly sunny, with a high near 71.
Sunday Night 2025-05-25, Chance Showers. A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.Memorial Day 2025-05-26, Partly Sunny then Chance Showers. A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Monday Night 2025-05-26, Chance Showers. A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Tuesday 2025-05-27, Chance Showers. A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.