I-66 weather conditions near Bethesda, Maryland
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Mostly Cloudy 64°F 2025-05-13T00:56:00-04:00 
Overnight 2025-05-13, Showers. Showers. Low around 65. Southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday 2025-05-13, Showers. Showers, with thunderstorms also possible after 5pm. High near 68. Southeast wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday Night 2025-05-13, Showers. Showers and possibly a thunderstorm. Low around 63. East wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday 2025-05-14, Showers. Showers likely, then showers and possibly a thunderstorm after 2pm. High near 76. East wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.- Wednesday Night 2025-05-14, Showers. Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Thursday 2025-05-15, Showers Likely. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.Thursday Night 2025-05-15, Showers Likely then Mostly Cloudy. Showers likely before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday 2025-05-16, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Friday Night 2025-05-16, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
- Saturday 2025-05-17, Showers Likely. Showers likely, mainly after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Saturday Night 2025-05-17, Showers Likely then Mostly Clear. Showers likely. Mostly clear, with a low around 64. Chance of precipitation is 60%.
Sunday 2025-05-18, Mostly Sunny. Mostly sunny, with a high near 82.
Sunday Night 2025-05-18, Partly Cloudy. Partly cloudy, with a low around 59.
Monday 2025-05-19, Sunny. Sunny, with a high near 78.