Sigourney Weather Forecast

    • 33
    • 39

    Chance Rain

    • 11
    • 41

    Breezy

    • 27
    • 35

    Mostly Cloudy

    • 18
    • 43

    Mostly Cloudy

    • 21
    • 31

    Mostly Cloudy

Today 17 Dec Keokuk

Mostly sunny. Highs in the upper 30s. West Winds around 5 Mph, becoming southeast with Gusts up to 20 Mph in the afternoon.

Tonight 17 Dec Keokuk

Mostly cloudy. Rain after midnight. Lows in the mid 30s. South Winds around 15 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

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Sigourney Temperature Statistics

December Temperature

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

  • Lowest 14 December, 2025

    -9.4 °F

  • Average December

    21.7 °F

  • Highest 9 December, 2025

    45 °F

Climate (2020–Present)

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    53.9 °F

  • Average High 2020–2025

    64.6 °F
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