Altnow Marsh State Wildlife Management Area Weather Forecast

    • 48
    • 70

    Mostly Sunny

    • 55
    • 82

    Rain Showers Likely

    • 61
    • 87

    Mostly Sunny

    • 60
    • 91

    Mostly Sunny

    • 59
    • 86

    Slight Chance Thunderstorms

    • 57
    • 82

    Partly Sunny

    • 54
    • 79

    Partly Sunny

Today 23 May Sibley

Warmer. Mostly sunny. Highs around 70. West Winds 5 to 10 Mph.

Tonight 23 May Sibley

Increasing Clouds. Lows in the upper 40s. Northwest Winds up to 5 Mph shifting to the south after midnight.

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Altnow Marsh State Wildlife Management Area Temperature Statistics

May Temperature

Glencoe Municipal Airport (11.2 miles)

  • Lowest 7 May, 2026

    28.4 °F

  • Average May

    54.7 °F

  • Highest 15 May, 2026

    85.5 °F

Climate (2021–Present)

Glencoe Municipal Airport (11.2 miles)

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  • Average Low 2021–2026

    37.1 °F

  • Average 2021–2026

    46.7 °F

  • Average High 2021–2026

    56.2 °F
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