Split Rock County Park Weather Forecast

    • 49
    • 70

    Becoming Sunny

    • 45
    • 68

    Mostly Sunny

    • 45
    • 66

    Mostly Sunny

    • 45
    • 69

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

Today 23 Aug Chickasaw

Mostly sunny. Highs in the upper 60s. Northwest Winds 10 to 15 Mph.

Tonight 23 Aug Chickasaw

Partly cloudy in the Evening, then becoming mostly clear. Cooler with Lows in the upper 40s. Northwest Winds 10 to 15 Mph.

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Split Rock County Park Temperature Statistics

August Temperature

Oelwein Municipal Airport (20.5 miles)

  • Lowest 1 August, 2025

    53.6 °F

  • Average August

    71.7 °F

  • Highest 16 August, 2025

    89.6 °F

Climate (2020–Present)

Oelwein Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    38.3 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    57.7 °F
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