Altnow Marsh State Wildlife Management Area Weather Forecast

    • 33
    • 36

    Dense Fog

    • 31
    • 37

    Mostly Cloudy

    • 21
    • 45

    Mostly Cloudy

    • 2
    • 26

    Slight Chance Snow

    • 5
    • 12

    Partly Sunny

    • 12
    • 31

    Mostly Cloudy

Today 25 Dec Sibley

Cloudy. Patchy dense fog early in the morning. Areas of dense freezing fog early in the morning. Areas of fog in the afternoon. Slight chance of very light freezing drizzle early in the morning. Slight chance of drizzle in the late morning and afternoon. Highs in the mid 30s. Southeast Winds 5 to 15 Mph.

Tonight 25 Dec Sibley

Cloudy. Widespread dense fog through the night. Chance of drizzle in the evening. Slight chance of drizzle after midnight. Near steady temperature in the mid 30s. Southeast Winds 10 to 15 Mph shifting to the south after midnight.

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Altnow Marsh State Wildlife Management Area Temperature Statistics

December Temperature

Glencoe Municipal Airport (11.2 miles)

  • Lowest 4 December, 2025

    -15 °F

  • Average December

    15.7 °F

  • Highest 16 December, 2025

    43.9 °F

Climate (2020–Present)

Glencoe Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    37 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    56.1 °F
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