Fairmont Weather Forecast

    • 50
    • 71

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

    • 66
    • 85

    Slight Chance Thunderstorms

    • 67
    • 85

    Chance Thunderstorms

    • 63
    • 81

    Chance Rain Showers

    • 64
    • 81

    Chance Rain Showers

Today 14 Sep Marion

Mostly sunny. Highs around 70. North Winds around 5 Mph.

Tonight 14 Sep Marion

Mainly clear. Lows in the upper 40s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairmont Temperature Statistics

September Temperature

Clarksburg, Clarksburg Benedum Airport (13 miles)

  • Lowest 7 September, 2026

    55.7 °F

  • Average September

    74.4 °F

  • Highest 2 September, 2026

    90.6 °F

Climate (2021–2026)

Clarksburg, Clarksburg Benedum Airport (13 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    66.3 °F
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