Sigourney Weather Forecast

    • 60
    • 76

    Thunderstorms Likely

    • 64
    • 71

    Rain Showers

    • 65
    • 80

    Rain Showers Likely

    • 68
    • 82

    Rain Showers Likely

    • 64
    • 82

    Chance Thunderstorms

    • 59
    • 73

    Slight Chance Thunderstorms

    • 57
    • 70

    Partly Sunny

Today 15 Sep Keokuk

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the mid 70s. Temperature falling to around 70 late. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 15 Sep Keokuk

Showers and Thunderstorms likely. Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sigourney Temperature Statistics

September Temperature

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

  • Lowest 13 September, 2026

    55 °F

  • Average September

    76.9 °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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