I-66 weather conditions near Upper Marlboro, Maryland

Roadnow AI Agent Live Update

7 day weather forecast

• Current condition: Fair 78°F 2025-09-14T11:25:00-04:00
• Today 2025-09-14, Sunny. Sunny, with a high near 85. Light and variable wind.
• Tonight 2025-09-14, Partly Cloudy. Partly cloudy, with a low around 63. Light east wind.
• Monday 2025-09-15, Partly Sunny. Partly sunny, with a high near 81. East wind 3 to 8 mph.
• Monday Night 2025-09-15, Mostly Cloudy then Slight Chance Showers. A slight chance of showers after 2am. Mostly cloudy, with a low around 62. Northeast wind around 6 mph. Chance of precipitation is 20%.
• Tuesday 2025-09-16, Chance Showers. A chance of showers, mainly after 8am. Mostly cloudy, with a high near 73. Northeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
• Tuesday Night 2025-09-16, Chance Showers then Chance T-storms. A chance of showers and thunderstorms. Cloudy, with a low around 62. Chance of precipitation is 50%.
• Wednesday 2025-09-17, Showers Likely. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 70. Chance of precipitation is 60%.
• Wednesday Night 2025-09-17, Chance Showers. A chance of showers before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
• Thursday 2025-09-18, Partly Sunny. Partly sunny, with a high near 79.
• Thursday Night 2025-09-18, Partly Cloudy. Partly cloudy, with a low around 63.
• Friday 2025-09-19, Sunny. Sunny, with a high near 85.
• Friday Night 2025-09-19, Partly Cloudy. Partly cloudy, with a low around 64.
• Saturday 2025-09-20, Mostly Sunny. Mostly sunny, with a high near 80.