I-66 weather conditions near Rockville, Maryland

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 76°F 2025-09-05T22:56:00-04:00
• Tonight 2025-09-05, Partly Cloudy. Partly cloudy, with a low around 68. South wind around 6 mph.
• Saturday 2025-09-06, Partly Sunny then Showers Likely. A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
• Saturday Night 2025-09-06, Showers Likely. Showers and thunderstorms likely. Cloudy, with a low around 60. North wind around 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, Chance Showers then Mostly Sunny. A chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 74. Northwest wind around 7 mph. Chance of precipitation is 30%.
• Sunday Night 2025-09-07, Mostly Clear. Mostly clear, with a low around 52. Northwest wind around 5 mph.
• Monday 2025-09-08, Sunny. Sunny, with a high near 74.
• Monday Night 2025-09-08, Mostly Clear. Mostly clear, with a low around 52.
• Tuesday 2025-09-09, Sunny. Sunny, with a high near 75.
• Tuesday Night 2025-09-09, Partly Cloudy. Partly cloudy, with a low around 55.
• Wednesday 2025-09-10, Partly Sunny. Partly sunny, with a high near 74.
• Wednesday Night 2025-09-10, Partly Cloudy. Partly cloudy, with a low around 56.
• Thursday 2025-09-11, Sunny. Sunny, with a high near 81.
• Thursday Night 2025-09-11, Mostly Clear. Mostly clear, with a low around 56.
• Friday 2025-09-12, Sunny. Sunny, with a high near 75.