Potomac Weather Forecast

    • 62
    • 80

    Mostly Sunny

    • 68
    • 86

    Partly Sunny

    • 68
    • 88

    Rain Showers

    • 68
    • 84

    Rain Showers

    • 68
    • 84

    Partly Sunny

    • 69
    • 88

    Partly Sunny

    • 72
    • 93

    Mostly Sunny

Today 24 Jun Central and Southeast Montgomery

Mostly sunny. Highs in the lower 80s. West Winds around 5 Mph.

Tonight 24 Jun Central and Southeast Montgomery

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Southwest Winds around 5 Mph.

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Potomac Temperature Statistics

June Temperature

Gaithersburg - Montgomery County Airport (10.6 miles)

  • Lowest 2 June, 2026

    48.2 °F

  • Average June

    73 °F

  • Highest 11 June, 2026

    95 °F

Climate (2021–2026)

Gaithersburg - Montgomery County Airport (10.6 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56 °F

  • Average High 2021–2026

    65.9 °F
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