Clarksville Weather Forecast

    • 43
    • 46

    Rain

    • 25
    • 51

    Chance Rain

    • 35
    • 41

    Mostly Cloudy

    • 24
    • 48

    Partly Sunny

    • 25
    • 38

    Mostly Cloudy

    • 34
    • 46

    Mostly Cloudy

Today 18 Dec Central and Southeast Howard

Mostly sunny. A chance of rain in the afternoon. Highs in the mid 40s. Southeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 18 Dec Central and Southeast Howard

Rain. Lows in the mid 40s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

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Clarksville Temperature Statistics

December Temperature

Gaithersburg - Montgomery County Airport (11.8 miles)

  • Lowest 15 December, 2025

    18 °F

  • Average December

    31.1 °F

  • Highest 1 December, 2025

    44.1 °F

Climate (2020–Present)

Gaithersburg - Montgomery County Airport (11.8 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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