Mosinee Weather Forecast

    • 56
    • 79

    Decreasing Clouds

    • 60
    • 81

    Partly Sunny

    • 61
    • 84

    Partly Sunny

    • 59
    • 80

    Chance Rain Showers

    • 56
    • 75

    Chance Thunderstorms

    • 50
    • 69

    Chance Rain Showers

Today 14 Sep Marathon

Partly cloudy. Areas of fog in the morning. Highs in the upper 70s. Southeast wind 5 to 10 Mph.

Tonight 14 Sep Marathon

Mostly clear. Lows in the middle 50s. Southeast wind 5 to 10 Mph in the evening becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mosinee Temperature Statistics

September Temperature

Mosinee (1.9 miles)

  • Lowest 4 September, 2025

    37.4 °F

  • Average September

    54.4 °F

  • Highest 1 September, 2025

    73.4 °F

Climate (2020–Present)

Mosinee (1.9 miles)

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  • Average Low 2020–2025

    35.7 °F

  • Average 2020–2025

    43 °F

  • Average High 2020–2025

    53.3 °F
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