New Glarus Weather Forecast

    • 70
    • 84

    Mostly Cloudy

    • 58
    • 80

    Chance Rain Showers

    • 54
    • 77

    Mostly Sunny

    • 62
    • 79

    Partly Sunny

    • 58
    • 81

    Slight Chance Thunderstorms

    • 58
    • 77

    Chance Thunderstorms

Today 8 Sep Green

Partly sunny. A 20 percent chance of light Showers and Thunderstorms in the afternoon. Highs in the mid 80s. South Winds 5 to 15 Mph.

Tonight 8 Sep Green

Partly cloudy after midnight then becoming mostly cloudy. Lows around 60. Southeast Winds 5 to 10 Mph.

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New Glarus Temperature Statistics

September Temperature

Monroe Municipal Airport (13 miles)

  • Lowest 5 September, 2026

    68.9 °F

  • Average September

    80 °F

  • Highest 1 September, 2026

    92.7 °F

Climate (2021–2026)

Monroe Municipal Airport (13 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    58.6 °F
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