I-66 weather conditions near Derwood, Maryland

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Light Rain 63°F 2025-09-10T11:56:00-04:00
• This Afternoon 2025-09-10, Cloudy. Cloudy, with a high near 69. North wind around 9 mph.
• Tonight 2025-09-10, Decreasing Clouds. Cloudy, then gradually becoming partly cloudy, with a low around 56. North wind around 5 mph becoming calm in the evening.
• Thursday 2025-09-11, Sunny. Sunny, with a high near 80. North wind 3 to 6 mph.
• Thursday Night 2025-09-11, Mostly Clear. Mostly clear, with a low around 57. Light north wind.
• Friday 2025-09-12, Mostly Sunny. Mostly sunny, with a high near 81. Light and variable wind becoming northeast around 6 mph in the morning.
• Friday Night 2025-09-12, Partly Cloudy. Partly cloudy, with a low around 58.
• Saturday 2025-09-13, Mostly Sunny. Mostly sunny, with a high near 81.
• Saturday Night 2025-09-13, Partly Cloudy. Partly cloudy, with a low around 60.
• Sunday 2025-09-14, Mostly Sunny. Mostly sunny, with a high near 83.
• Sunday Night 2025-09-14, Partly Cloudy. Partly cloudy, with a low around 60.
• Monday 2025-09-15, Sunny. Sunny, with a high near 81.
• Monday Night 2025-09-15, Partly Cloudy. Partly cloudy, with a low around 59.
• Tuesday 2025-09-16, Mostly Sunny. Mostly sunny, with a high near 79.