Sigourney Weather Forecast

    • 64
    • 87

    Rain Showers

    • 59
    • 77

    Rain Showers

    • 60
    • 81

    Mostly Sunny

    • 65
    • 84

    Slight Chance Thunderstorms

    • 71
    • 88

    Mostly Sunny

    • 69
    • 90

    Chance Rain Showers

Today 4 Aug Keokuk

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. West Winds around 5 Mph. Chance of rain 40 percent.

Tonight 4 Aug Keokuk

A chance of Thunderstorms. A chance of Showers in the Evening, then Showers after midnight. Humid with Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain near 100 percent.

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Sigourney Temperature Statistics

August Temperature

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

  • Lowest 2 August, 2026

    63.9 °F

  • Average August

    72.6 °F

  • Highest 2 August, 2026

    84.6 °F

Climate (2021–2026)

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    65.3 °F
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