I-66 weather conditions near Potomac, Maryland
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 63°F 2025-09-14T05:56:00-04:00 
Today 2025-09-14, Sunny. Sunny, with a high near 86. Calm wind.
Tonight 2025-09-14, Mostly Clear. Mostly clear, with a low around 62. Light east wind.
Monday 2025-09-15, Increasing Clouds. Increasing clouds, with a high near 82. East wind 3 to 7 mph.
Monday Night 2025-09-15, Mostly Cloudy. Mostly cloudy, with a low around 61. East wind 3 to 6 mph.
Tuesday 2025-09-16, Chance Showers. A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 74. Northeast wind 6 to 9 mph. Chance of precipitation is 40%.
Tuesday Night 2025-09-16, Chance Showers. A chance of showers, with thunderstorms also possible after 11pm. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.Wednesday 2025-09-17, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Cloudy, with a high near 69. Chance of precipitation is 50%.
Wednesday Night 2025-09-17, Chance T-storms then Chance Showers. A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 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 78.
- Thursday Night 2025-09-18, Partly Cloudy. Partly cloudy, with a low around 61.
- Friday 2025-09-19, Sunny. Sunny, with a high near 85.
- Friday Night 2025-09-19, Partly Cloudy. Partly cloudy, with a low around 63.
Saturday 2025-09-20, Mostly Sunny. Mostly sunny, with a high near 80.