Sigourney Weather Forecast

    • 58
    • 77

    Rain Showers Likely

    • 43
    • 65

    Mostly Cloudy

    • 44
    • 64

    Partly Sunny

    • 48
    • 66

    Chance Rain Showers

    • 50
    • 66

    Slight Chance Thunderstorms

    • 54
    • 75

    Partly Sunny

    • 59
    • 82

    Slight Chance Thunderstorms

Today 18 May Keokuk

Mostly cloudy. Near steady temperature in the upper 70s. South Winds around 20 Mph with Gusts up to 30 Mph.

Tonight 18 May Keokuk

Occasional Showers and Thunderstorms. Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sigourney Temperature Statistics

May Temperature

Oskaloosa, Oskaloosa Municipal Airport (16.2 miles)

  • Lowest 7 May, 2026

    37.8 °F

  • Average May

    62.3 °F

  • Highest 15 May, 2026

    89.1 °F

Climate (2021–Present)

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

    65.2 °F
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