I-66 weather conditions near Rockville, Maryland
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair and Windy 56°F 2025-11-16T08:56:00-05:00 
Today 2025-11-16, Sunny and Breezy. Sunny, with a temperature falling to around 49 by 5pm. Breezy, with a northwest wind 16 to 25 mph, with gusts as high as 46 mph.
Tonight 2025-11-16, Mostly Clear. Mostly clear, with a low around 36. West wind 10 to 16 mph, with gusts as high as 33 mph.
Monday 2025-11-17, Sunny. Sunny, with a high near 49. Northwest wind 10 to 15 mph, with gusts as high as 29 mph.- Monday Night 2025-11-17, Mostly Clear. Mostly clear, with a low around 30. Northwest wind 3 to 7 mph.
Tuesday 2025-11-18, Mostly Sunny then Slight Chance Rain. A slight chance of rain after 1pm. Partly sunny, with a high near 48. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 20%.
Tuesday Night 2025-11-18, Rain Likely. Rain likely, mainly before 1am. Cloudy, with a low around 40. Chance of precipitation is 60%.
Wednesday 2025-11-19, Mostly Cloudy. Mostly cloudy, with a high near 53.Wednesday Night 2025-11-19, Mostly Cloudy then Chance Rain. A chance of rain after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
- Thursday 2025-11-20, Mostly Cloudy. Mostly cloudy, with a high near 58.
Thursday Night 2025-11-20, Mostly Cloudy then Chance Rain. A chance of rain after 1am. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.
Friday 2025-11-21, Chance Rain. A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.
Friday Night 2025-11-21, Chance Rain. A chance of rain. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.- Saturday 2025-11-22, Chance Rain. A chance of rain. Mostly sunny, with a high near 61. Chance of precipitation is 30%.