Rockville Weather Forecast

    • 27
    • 42

    Decreasing Clouds

    • 26
    • 42

    Mostly Cloudy

    • 19
    • 33

    Partly Sunny

    • 29
    • 36

    Mostly Cloudy

    • 33
    • 46

    Mostly Cloudy

    • 29
    • 44

    Chance Rain/Snow

Today 6 Dec Central and Southeast Montgomery

Patchy fog in the morning. Partly sunny. Highs in the lower 40s. West Winds around 5 Mph.

Tonight 6 Dec Central and Southeast Montgomery

Partly cloudy. Lows in the mid 20s. Light and variable Winds, becoming northwest around 5 Mph after midnight.

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Rockville Temperature Statistics

December Temperature

Gaithersburg - Montgomery County Airport (5.6 miles)

  • Lowest 3 December, 2025

    24.1 °F

  • Average December

    34.2 °F

  • Highest 1 December, 2025

    44.1 °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

    65.8 °F
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