New Glarus Weather Forecast

    • 64
    • 80

    Rain Showers

    • 45
    • 73

    Chance Thunderstorms

    • 41
    • 63

    Partly Sunny

    • 45
    • 64

    Mostly Cloudy

    • 49
    • 68

    Slight Chance Rain Showers

    • 53
    • 75

    Slight Chance Thunderstorms

Today 18 May Green

Mostly cloudy with a 50 percent chance of Showers and Thunderstorms. Highs in the lower 80s. South Winds 10 to 20 Mph.

Tonight 18 May Green

Mostly cloudy. Chance of Showers and Thunderstorms through around Midnight, then Showers and chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 10 to 20 Mph. Chance of precipitation 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Glarus Temperature Statistics

May Temperature

Monroe Municipal Airport (13 miles)

  • Lowest 7 May, 2026

    32.5 °F

  • Average May

    54.8 °F

  • Highest 15 May, 2026

    80.8 °F

Climate (2021–Present)

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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