Grand Marsh Weather Forecast

    • 60
    • 84

    Chance Thunderstorms

    • 60
    • 81

    Chance Rain Showers

    • 64
    • 82

    Rain Showers Likely

    • 62
    • 82

    Chance Thunderstorms

    • 59
    • 79

    Slight Chance Thunderstorms

    • 56
    • 79

    Slight Chance Thunderstorms

Today 7 Aug Adams

Mostly cloudy. Highs in the mid 80s. Southwest Winds 10 to 15 Mph.

Tonight 7 Aug Adams

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows around 60. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 20 percent.

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  • Temperature Real-Time

Grand Marsh Temperature Statistics

August Temperature

New Lisbon Mauston Airport (21.7 miles)

  • Lowest 5 August, 2026

    61.9 °F

  • Average August

    73.6 °F

  • Highest 3 August, 2026

    82.9 °F

Climate (2021–2026)

New Lisbon Mauston Airport (21.7 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    57.8 °F
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