Grantsville Weather Forecast

    • 63
    • 76

    Rain Showers

    • 57
    • 78

    Rain Showers Likely

    • 47
    • 69

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

    • 61
    • 81

    Chance Rain Showers

    • 62
    • 82

    Chance Rain Showers

    • 57
    • 76

    Chance Rain Showers

Today 12 Sep Eastern Garrett

Numerous Showers and scattered Thunderstorms. Some Thunderstorms may produce heavy rainfall. Highs in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 70 percent.

Tonight 12 Sep Eastern Garrett

Scattered Thunderstorms. Showers, mainly in the evening. Patchy fog. Some Thunderstorms may produce heavy rainfall. Lows in the lower 60s. Southeast Winds around 5 Mph, becoming west after midnight. Chance of rain 90 percent.

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Grantsville Temperature Statistics

September Temperature

Garrett County Airport (12.4 miles)

  • Lowest 7 September, 2026

    53.6 °F

  • Average September

    69 °F

  • Highest 2 September, 2026

    84.2 °F

Climate (2021–2026)

Garrett County Airport (12.4 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    49 °F

  • Average High 2021–2026

    57 °F
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