Turtle Marsh State Wildlife Management Area Weather Forecast

    • 65
    • 91

    Mostly Cloudy

    • 66
    • 89

    Slight Chance Thunderstorms

    • 65
    • 88

    Mostly Sunny

    • 63
    • 90

    Chance Thunderstorms

    • 60
    • 81

    Chance Thunderstorms

    • 56
    • 75

    Chance Rain Showers

Today 13 Sep Watonwan

Mostly sunny. Highs around 90. Southeast Winds 5 to 10 Mph.

Tonight 13 Sep Watonwan

Partly cloudy. Lows in the upper 60s. South Winds 5 to 10 Mph.

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Turtle Marsh State Wildlife Management Area Temperature Statistics

September Temperature

St. James Municipal Airport (8.1 miles)

  • Lowest 7 September, 2025

    37.4 °F

  • Average September

    60 °F

  • Highest 11 September, 2025

    82.4 °F

Climate (2020–Present)

St. James Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    36.5 °F

  • Average 2020–2025

    46.6 °F

  • Average High 2020–2025

    56.6 °F
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