Loon Lake Weather Forecast

    • 64
    • 83

    Chance Thunderstorms

    • 60
    • 77

    Chance Thunderstorms

    • 56
    • 73

    Chance Rain Showers

    • 60
    • 73

    Chance Thunderstorms

    • 59
    • 75

    Chance Thunderstorms

    • 56
    • 74

    Chance Rain Showers

    • 52
    • 71

    Partly Sunny

Today 17 Sep Chippewa

Mostly sunny. A 20 percent chance of Thunderstorms late in the afternoon. Near steady temperature in the lower 80s. Southwest Winds up to 5 Mph.

Tonight 17 Sep Chippewa

Increasing Clouds. Slight chance of Thunderstorms early in the Evening, then chance of Thunderstorms until early morning. Chance of Showers late in the night. Lows in the mid 60s. Southwest Winds up to 5 Mph shifting to the northeast. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Loon Lake Temperature Statistics

September Temperature

Chetek Municipal Southworth Airport (9.3 miles)

  • Lowest 7 September, 2025

    39.6 °F

  • Average September

    61.4 °F

  • Highest 13 September, 2025

    84.2 °F

Climate (2020–Present)

Chetek Municipal Southworth Airport (9.3 miles)

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  • Average Low 2020–2025

    36.5 °F

  • Average 2020–2025

    46.3 °F

  • Average High 2020–2025

    55.8 °F
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