Guernsey Weather Forecast

    • 63
    • 84

    Mostly Cloudy

    • 60
    • 82

    Chance Rain Showers

    • 59
    • 81

    Chance Thunderstorms

    • 57
    • 85

    Partly Sunny

    • 57
    • 84

    Partly Sunny

    • 60
    • 85

    Partly Sunny

    • 63
    • 87

    Partly Sunny

Today 29 May Poweshiek

Partly sunny. Highs in the mid 80s. Southeast Winds around 5 Mph.

Tonight 29 May Poweshiek

Mostly cloudy. A slight chance of Showers after midnight. Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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Guernsey Temperature Statistics

May Temperature

Oskaloosa, Oskaloosa Municipal Airport (29.8 miles)

  • Lowest 7 May, 2026

    37.8 °F

  • Average May

    64.9 °F

  • Highest 27 May, 2026

    90.3 °F

Climate (2021–Present)

Oskaloosa, Oskaloosa Municipal Airport (29.8 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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