Sigourney Weather Forecast

    • 50
    • 64

    Gradual Clearing

    • 53
    • 68

    Increasing Clouds

    • 56
    • 67

    Mostly Cloudy

    • 56
    • 68

    Chance Rain Showers

    • 56
    • 64

    Chance Rain Showers

    • 57
    • 71

    Mostly Cloudy

    • 59
    • 73

    Chance Rain Showers

Today 22 Sep Keokuk

Mostly cloudy with a 40 percent chance of Showers. Highs in the lower 70s.

Tonight 22 Sep Keokuk

Mostly cloudy this Evening, then clearing. Lows around 50. Northeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Sigourney Temperature Statistics

September Temperature

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

  • Lowest 13 September, 2026

    55 °F

  • Average September

    74.9 °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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