Big Eau Pleine Reservoir Weather Forecast

    • 54
    • 66

    Mostly Cloudy

    • 53
    • 72

    Partly Sunny

    • 57
    • 70

    Rain Showers Likely

    • 55
    • 69

    Chance Rain Showers

    • 49
    • 69

    Chance Rain Showers

    • 46
    • 64

    Slight Chance Rain Showers

Today 27 Sep Marathon

Mostly cloudy. A chance of Sprinkles in the morning. Highs in the upper 60s. Light and variable wind.

Tonight 27 Sep Marathon

Partly cloudy. Patchy fog. Lows in the middle 50s. Light and variable wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Eau Pleine Reservoir Temperature Statistics

September Temperature

Mosinee (6.2 miles)

  • Lowest 14 September, 2026

    41 °F

  • Average September

    60.5 °F

  • Highest 1 September, 2026

    87.8 °F

Climate (2021–2026)

Mosinee (6.2 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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