Lake Keomah State Park Weather Forecast

    • 45
    • 54

    Rain

    • 10
    • 55

    Rain Showers

    • 3
    • 19

    Blustery

    • 24
    • 31

    Chance Snow

    • 33
    • 53

    Partly Sunny

    • 39
    • 67

    Mostly Sunny

Today 14 Mar Mahaska

Mostly sunny. Highs in the mid 50s. Southeast Winds 15 to 20 Mph.

Tonight 14 Mar Mahaska

Mostly cloudy. A chance of rain with a slight chance of Thunderstorms after midnight. Lows in the mid 40s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Lake Keomah State Park Temperature Statistics

March Temperature

Oskaloosa, Oskaloosa Municipal Airport (5 miles)

  • Lowest 1 March, 2026

    20.5 °F

  • Average March

    46.4 °F

  • Highest 9 March, 2026

    79 °F

Climate (2021–Present)

Oskaloosa, Oskaloosa Municipal Airport (5 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    54.1 °F

  • Average High 2021–2026

    65 °F
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