Lake Keomah State Park Weather Forecast

    • 69
    • 89

    Patchy Smoke

    • 68
    • 89

    Mostly Sunny

    • 67
    • 87

    Rain Showers

    • 64
    • 82

    Rain Showers

    • 63
    • 79

    Mostly Sunny

    • 63
    • 82

    Sunny

    • 65
    • 84

    Mostly Sunny

Today 28 Jul Mahaska

Partly sunny. Patchy smoke. Near steady temperature in the upper 80s. Northeast Winds 5 to 10 Mph.

Tonight 28 Jul Mahaska

Partly cloudy in the Evening, then clearing. Patchy smoke. Humid with Lows in the upper 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Keomah State Park Temperature Statistics

July Temperature

Oskaloosa, Oskaloosa Municipal Airport (5 miles)

  • Lowest 23 July, 2026

    55.4 °F

  • Average July

    78.6 °F

  • Highest 26 July, 2026

    97.5 °F

Climate (2021–2026)

Oskaloosa, Oskaloosa Municipal Airport (5 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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