Thunder Bay River State Forest Weather Forecast

    • 37
    • 53

    Rain Showers Likely

    • 34
    • 49

    Rain Showers Likely

    • 32
    • 50

    Chance Rain Showers

    • 36
    • 53

    Mostly Cloudy

    • 40
    • 55

    Mostly Cloudy

    • 43
    • 56

    Chance Rain Showers

Today 22 Oct Alpena

Partly sunny. Slight chance of rain Showers Early, then chance of rain Showers in the afternoon. Highs in the lower 50s. Northwest Winds 5 to 15 Mph with Gusts to around 25 Mph. Chance of Showers 50 percent.

Tonight 22 Oct Alpena

Mostly cloudy. Light rain Showers likely Early, then chance of rain Showers after midnight. Lows in the mid 30s. Northwest Winds 5 to 15 Mph with Gusts to around 25 Mph. Chance of Showers 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thunder Bay River State Forest Temperature Statistics

October Temperature

Alpena, Alpena County Regional Airport (1.2 miles)

  • Lowest 9 October, 2025

    34 °F

  • Average October

    55.8 °F

  • Highest 4 October, 2025

    87.1 °F

Climate (2020–Present)

Alpena, Alpena County Regional Airport (1.2 miles)

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  • Average Low 2020–2025

    37.3 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.6 °F
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