Potomac Weather Forecast

    • 22
    • 40

    Sunny

    • 33
    • 42

    Chance Snow Showers

    • 26
    • 37

    Chance Snow Showers

    • 21
    • 37

    Mostly Sunny

    • 27
    • 41

    Partly Sunny

    • 31
    • 44

    Partly Sunny

Today 3 Dec Central and Southeast Montgomery

Sunny. Highs around 40. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 3 Dec Central and Southeast Montgomery

Clear. Lows in the lower 20s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac Temperature Statistics

December Temperature

Gaithersburg - Montgomery County Airport (10.6 miles)

  • Lowest 1 December, 2024

    17.1 °F

  • Average December

    28 °F

  • Highest 1 December, 2024

    39.9 °F

Climate (2019–Present)

Gaithersburg - Montgomery County Airport (10.6 miles)

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  • Average Low 2019–2024

    46.4 °F

  • Average 2019–2024

    56 °F

  • Average High 2019–2024

    65.9 °F
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