Chestnut Mountain Ski Resort Weather Forecast

    • 54
    • 69

    Mostly Cloudy

    • 54
    • 70

    Partly Sunny

    • 54
    • 72

    Partly Sunny

    • 61
    • 72

    Rain Showers Likely

    • 61
    • 70

    Rain Showers Likely

    • 55
    • 70

    Chance Rain Showers

    • 53
    • 66

    Chance Rain Showers

Today 26 Sep Jo Daviess

Partly sunny. Near steady temperature in the upper 60s. Southeast Winds around 5 Mph.

Tonight 26 Sep Jo Daviess

Mostly cloudy. Lows in the lower 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chestnut Mountain Ski Resort Temperature Statistics

September Temperature

Dubuque Regional Airport (16.8 miles)

  • Lowest 23 September, 2026

    47.6 °F

  • Average September

    68.4 °F

  • Highest 1 September, 2026

    91.7 °F

Climate (2021–2026)

Dubuque Regional Airport (16.8 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.4 °F
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