Rockville Weather Forecast

    • 69
    • 88

    Mostly Sunny

    • 60
    • 87

    Rain Showers

    • 53
    • 74

    Partly Sunny

    • 52
    • 74

    Mostly Sunny

    • 54
    • 74

    Partly Sunny

    • 56
    • 74

    Partly Sunny

Today 5 Sep Central and Southeast Montgomery

Sunny. Highs in the upper 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 5 Sep Central and Southeast Montgomery

Mostly clear. Lows in the upper 60s. South Winds 5 to 10 Mph.

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Rockville Temperature Statistics

September Temperature

Gaithersburg - Montgomery County Airport (5.6 miles)

  • Lowest 1 September, 2025

    51.8 °F

  • Average September

    65.5 °F

  • Highest 3 September, 2025

    82 °F

Climate (2020–Present)

Gaithersburg - Montgomery County Airport (5.6 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    56 °F

  • Average High 2020–2025

    65.9 °F
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