Forest Lake Weather Forecast

    • 38
    • 62

    Chance Rain Showers

    • 37
    • 63

    Becoming Sunny

    • 42
    • 70

    Partly Sunny

    • 49
    • 75

    Partly Sunny

    • 50
    • 78

    Partly Sunny

    • 43
    • 70

    Mostly Sunny

    • 45
    • 70

    Partly Sunny

Today 6 Sep Arenac

Partly sunny. A 20 percent chance of rain Showers in the afternoon. Highs in the lower 60s. West Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 6 Sep Arenac

Partly cloudy. A 20 percent chance of rain Showers early. Lows around 40. West Winds up to 10 Mph. Gusts up to 20 Mph early.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Forest Lake Temperature Statistics

September Temperature

Houghton Lake, Roscommon County Airport (32.9 miles)

  • Lowest 4 September, 2025

    42.1 °F

  • Average September

    58.3 °F

  • Highest 2 September, 2025

    78.1 °F

Climate (2020–Present)

Houghton Lake, Roscommon County Airport (32.9 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    46.1 °F

  • Average High 2020–2025

    55.6 °F
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