Big Creek State Park Weather Forecast

    • 73
    • 93

    Slight Chance Thunderstorms

    • 75
    • 94

    Slight Chance Thunderstorms

    • 73
    • 93

    Partly Sunny

    • 73
    • 91

    Slight Chance Thunderstorms

    • 71
    • 91

    Partly Sunny

    • 69
    • 90

    Partly Sunny

Today 31 Aug Polk

Mostly sunny with a slight chance of Showers and Thunderstorms. Humid with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 103 in the afternoon.

Tonight 31 Aug Polk

Partly cloudy. Near steady temperature in the mid 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Big Creek State Park Temperature Statistics

August Temperature

Ankeny Regional Airport (11.8 miles)

  • Lowest 23 August, 2026

    55.4 °F

  • Average August

    73.6 °F

  • Highest 11 August, 2026

    93.2 °F

Climate (2021–2026)

Ankeny Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.3 °F
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