Loon Lake Weather Forecast

    • 56
    • 69

    Rain Showers Likely

    • 57
    • 65

    Rain Showers

    • 55
    • 69

    Chance Rain Showers

    • 57
    • 73

    Chance Rain Showers

    • 54
    • 75

    Slight Chance Thunderstorms

    • 54
    • 70

    Mostly Sunny

Today 18 Sep South Cass

Cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the upper 60s. East Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 18 Sep South Cass

Cloudy with a chance of Showers and Thunderstorms. Lows in the mid 50s. East Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loon Lake Temperature Statistics

September Temperature

Pine River Regional Airport (10.6 miles)

  • Lowest 7 September, 2025

    33.8 °F

  • Average September

    60 °F

  • Highest 16 September, 2025

    84.2 °F

Climate (2020–Present)

Pine River Regional Airport (10.6 miles)

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  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    42.9 °F

  • Average High 2020–2025

    52.3 °F
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