Granite Peak Ski Area Weather Forecast

    • 61
    • 85

    Slight Chance Thunderstorms

    • 53
    • 77

    Slight Chance Thunderstorms

    • 53
    • 70

    Mostly Cloudy

    • 57
    • 71

    Chance Thunderstorms

    • 59
    • 74

    Chance Thunderstorms

    • 56
    • 76

    Chance Rain Showers

Today 17 Sep Marathon

Humid. Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the middle 80s. Light and variable wind becoming west around 5 Mph in the afternoon. Chance of rain 20 percent.

Tonight 17 Sep Marathon

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy after midnight. Lows around 60. Light and variable wind becoming northeast around 5 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Granite Peak Ski Area Temperature Statistics

September Temperature

Wausau Downtown Airport (2.5 miles)

  • Lowest 8 September, 2025

    39 °F

  • Average September

    59.9 °F

  • Highest 15 September, 2025

    82 °F

Climate (2020–Present)

Wausau Downtown Airport (2.5 miles)

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  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    55.9 °F
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