Rib Mountain State Park Weather Forecast

    • 46
    • 70

    Partly Sunny

    • 46
    • 69

    Mostly Cloudy

    • 51
    • 66

    Mostly Cloudy

    • 49
    • 70

    Mostly Cloudy

    • 55
    • 69

    Rain Showers Likely

    • 52
    • 67

    Chance Rain Showers

Today 25 Sep Marathon

Mostly sunny. Nearly steady temperature in the upper 60s. Southeast wind 5 to 10 Mph.

Tonight 25 Sep Marathon

Mostly clear. Lows in the middle 40s. Light and variable wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rib Mountain State Park Temperature Statistics

September Temperature

Wausau Downtown Airport (3.1 miles)

  • Lowest 14 September, 2026

    40.6 °F

  • Average September

    64.4 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Wausau Downtown Airport (3.1 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    46.8 °F

  • Average High 2021–2026

    56 °F
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