Fairmont Weather Forecast

    • 21
    • 40

    Mostly Cloudy

    • 16
    • 30

    Partly Sunny

    • 33
    • 39

    Chance Rain

    • 30
    • 45

    Rain/Snow Likely

    • 26
    • 37

    Rain/Snow Likely

    • 14
    • 32

    Chance Snow

Today 7 Dec Marion

Considerable cloudiness. Highs around 40. Southwest Winds around 5 Mph.

Tonight 7 Dec Marion

Considerable cloudiness. Lows in the lower 20s. North Winds 5 to 10 Mph.

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Fairmont Temperature Statistics

December Temperature

Clarksburg, Clarksburg Benedum Airport (13 miles)

  • Lowest 5 December, 2025

    23 °F

  • Average December

    29.4 °F

  • Highest 1 December, 2025

    34 °F

Climate (2020–Present)

Clarksburg, Clarksburg Benedum Airport (13 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    66 °F
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