Grass Lake Weather Forecast

    • 44
    • 55

    Increasing Clouds

    • 47
    • 61

    Partly Sunny

    • 50
    • 61

    Rain Showers Likely

    • 53
    • 62

    Rain Showers Likely

    • 49
    • 59

    Chance Rain Showers

    • 45
    • 56

    Slight Chance Rain Showers

Today 31 Oct Alpena

Mostly sunny. Highs in the upper 50s. Light Winds.

Tonight 31 Oct Alpena

Partly cloudy. A 20 percent chance of rain Showers after midnight. Lows in the lower 40s. Light Winds.

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Grass Lake Temperature Statistics

October Temperature

Alpena, Alpena County Regional Airport (11.2 miles)

  • Lowest 17 October, 2026

    28.7 °F

  • Average October

    52.1 °F

  • Highest 11 October, 2026

    75.7 °F

Climate (2021–2026)

Alpena, Alpena County Regional Airport (11.2 miles)

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  • Average Low 2021–2026

    36.7 °F

  • Average 2021–2026

    46.6 °F

  • Average High 2021–2026

    56.2 °F
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