Potomac Weather Forecast

    • 33
    • 55

    Becoming Sunny

    • 41
    • 59

    Partly Sunny

    • 56
    • 67

    Chance Rain Showers

    • 61
    • 78

    Chance Rain Showers

    • 59
    • 76

    Chance Rain Showers

    • 41
    • 73

    Chance Thunderstorms

Today 26 Mar Central and Southeast Montgomery

Mostly sunny. Highs in the mid 50s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 26 Mar Central and Southeast Montgomery

Mostly clear. Lows in the lower 30s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Potomac Temperature Statistics

March Temperature

Gaithersburg - Montgomery County Airport (10.6 miles)

  • Lowest 2 March, 2025

    18 °F

  • Average March

    47.3 °F

  • Highest 19 March, 2025

    75 °F

Climate (2020–Present)

Gaithersburg - Montgomery County Airport (10.6 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55.9 °F

  • Average High 2020–2025

    65.8 °F
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