I-66 weather conditions near Rockville, Maryland

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Mostly Cloudy 85°F 2025-09-06T12:56:00-04:00
• This Afternoon 2025-09-06, Showers. Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 87. West wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Tonight 2025-09-06, Showers Likely then Scattered Showers. Showers and thunderstorms likely before 3am, then scattered showers. Mostly cloudy, with a low around 60. North wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Sunday 2025-09-07, Scattered Showers then Mostly Sunny. Scattered showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 74. Northwest wind around 6 mph. Chance of precipitation is 30%.
• Sunday Night 2025-09-07, Mostly Clear. Mostly clear, with a low around 53. North wind around 6 mph.
• Monday 2025-09-08, Sunny. Sunny, with a high near 74. Northeast wind around 6 mph.
• Monday Night 2025-09-08, Mostly Clear. Mostly clear, with a low around 52.
• Tuesday 2025-09-09, Mostly Sunny. Mostly sunny, with a high near 76.
• Tuesday Night 2025-09-09, Mostly Cloudy. Mostly cloudy, with a low around 57.
• Wednesday 2025-09-10, Partly Sunny. Partly sunny, with a high near 75.
• Wednesday Night 2025-09-10, Partly Cloudy. Partly cloudy, with a low around 56.
• Thursday 2025-09-11, Mostly Sunny. Mostly sunny, with a high near 82.
• Thursday Night 2025-09-11, Partly Cloudy. Partly cloudy, with a low around 58.
• Friday 2025-09-12, Sunny. Sunny, with a high near 77.