Sigourney Weather Forecast

    • 64
    • 71

    Rain Showers

    • 52
    • 69

    Rain Showers

    • 48
    • 65

    Mostly Sunny

    • 51
    • 65

    Mostly Sunny

    • 45
    • 66

    Mostly Sunny

    • 47
    • 62

    Mostly Sunny

Today 30 Sep Keokuk

Showers with a slight chance of Thunderstorms. Not as warm. Humid with Highs in the lower 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

Tonight 30 Sep Keokuk

Showers likely in the Evening, then Showers with a chance of Thunderstorms after midnight. Humid with Lows in the mid 60s. South Winds 5 to 10 Mph, becoming southeast after midnight. Chance of rain 90 percent.

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Sigourney Temperature Statistics

September Temperature

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

  • Lowest 23 September, 2026

    52.3 °F

  • Average September

    71.5 °F

  • Highest 3 September, 2026

    96.8 °F

Climate (2021–2026)

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    65.2 °F
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