Long Lake Weather Forecast

    • 37
    • 57

    Mostly Cloudy

    • 39
    • 60

    Becoming Sunny

    • 40
    • 64

    Mostly Sunny

    • 39
    • 67

    Mostly Sunny

    • 38
    • 67

    Mostly Sunny

    • 40
    • 69

    Partly Sunny

    • 45
    • 69

    Partly Sunny

Today 21 Sep Montmorency

Partly sunny. Highs in the lower 70s.

Tonight 21 Sep Montmorency

Partly cloudy. Lows in the upper 30s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Long Lake Temperature Statistics

September Temperature

Alpena, Alpena County Regional Airport (19.9 miles)

  • Lowest 11 September, 2026

    42.7 °F

  • Average September

    63 °F

  • Highest 1 September, 2026

    86.6 °F

Climate (2021–2026)

Alpena, Alpena County Regional Airport (19.9 miles)

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  • Average Low 2021–2026

    36.8 °F

  • Average 2021–2026

    46.6 °F

  • Average High 2021–2026

    56.2 °F
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