Sandy Spring Weather Forecast

    • 16
    • 27

    Decreasing Clouds

    • 24
    • 34

    Partly Sunny

    • 27
    • 45

    Mostly Cloudy

    • 34
    • 52

    Rain

    • 23
    • 42

    Partly Sunny

    • 35
    • 41

    Chance Rain

Today 15 Dec Central and Southeast Montgomery

Mostly cloudy. Highs in the upper 20s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Dec Central and Southeast Montgomery

Partly cloudy in the Evening, then clearing. Lows around 17. South Winds around 5 Mph, becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sandy Spring Temperature Statistics

December Temperature

Gaithersburg - Montgomery County Airport (7.5 miles)

  • Lowest 4 December, 2025

    21.9 °F

  • Average December

    32.3 °F

  • Highest 1 December, 2025

    44.1 °F

Climate (2020–Present)

Gaithersburg - Montgomery County Airport (7.5 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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