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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 39.02°N 77.2°W (Text-Only)
NWS Forecast for: Potomac MD
Issued by: National Weather Service Baltimore, MD/Washington, D.C.
Last Update: 12:53 am EST Dec 5, 2025		Print

  • Overnight

    Overnight: Snow likely, mainly after 4am. Cloudy, with a low around 23. East wind 5 to 7 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 23 °F

    Snow Likely

  • Friday

    Friday: Snow, mainly before 8am. High near 32. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Snow then
    Chance Snow

  • Friday
    Night

    Friday Night: Patchy fog before 1am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Patchy Fog

  • Saturday

    Saturday: Partly sunny, with a high near 41. Light southwest wind.

    High: 41 °F

    Partly Sunny

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear



    • Overnight: Snow likely, mainly after 4am. Cloudy, with a low around 23. East wind 5 to 7 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Friday: Snow, mainly before 8am. High near 32. East wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Friday Night: Patchy fog before 1am, then patchy fog after 5am. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Saturday: Partly sunny, with a high near 41. Light southwest wind.

    Saturday Night: Partly cloudy, with a low around 26. Calm wind.

    Sunday: Partly sunny, with a high near 41.

    Sunday Night: Mostly cloudy, with a low around 25.

    Monday: Mostly sunny, with a high near 34.

    Monday Night: Mostly clear, with a low around 18.

    Tuesday: Mostly sunny, with a high near 38.

    Tuesday Night: Mostly cloudy, with a low around 29.

    Wednesday: Mostly cloudy, with a high near 46.

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.

    Thursday: A chance of rain. Partly sunny, with a high near 44. Chance of precipitation is 30%.


    Potomac MD
     39.02°N 77.2°W (Elev. 381 ft)

    Visit your local NWS office at: https://www.weather.gov/lwx