Winnebago Weather Forecast

    • 58
    • 81

    Decreasing Clouds

    • 60
    • 83

    Mostly Sunny

    • 63
    • 87

    Sunny

    • 66
    • 89

    Mostly Sunny

    • 63
    • 88

    Chance Rain Showers

    • 52
    • 78

    Chance Rain Showers

    • 50
    • 69

    Partly Sunny

Today 30 Sep Thurston

Cloudy. Near steady temperature in the upper 70s. South Winds 10 to 15 Mph.

Tonight 30 Sep Thurston

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winnebago Temperature Statistics

September Temperature

Sioux City, Sioux Gateway Airport (11.8 miles)

  • Lowest 7 September, 2025

    37.9 °F

  • Average September

    65.9 °F

  • Highest 13 September, 2025

    91.9 °F

Climate (2020–Present)

Sioux City, Sioux Gateway Airport (11.8 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    62.6 °F
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