Mosinee Flowage Weather Forecast

    • 42
    • 67

    Partly Sunny

    • 40
    • 61

    Mostly Cloudy

    • 39
    • 63

    Mostly Sunny

    • 41
    • 65

    Mostly Sunny

    • 44
    • 66

    Partly Sunny

    • 45
    • 69

    Partly Sunny

Today 20 Sep Marathon

Mostly cloudy. Highs in the upper 60s. Northeast wind 10 to 15 Mph.

Tonight 20 Sep Marathon

Mostly cloudy. Lows in the lower 40s. Northeast wind 5 to 10 Mph.

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Mosinee Flowage Temperature Statistics

September Temperature

Mosinee (1.2 miles)

  • Lowest 14 September, 2026

    41 °F

  • Average September

    63.3 °F

  • Highest 1 September, 2026

    87.8 °F

Climate (2021–2026)

Mosinee (1.2 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    43.2 °F

  • Average High 2021–2026

    53.6 °F
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