Saylorville Weather Forecast

    • 70
    • 88

    Rain Showers Likely

    • 68
    • 82

    Rain Showers

    • 71
    • 83

    Rain Showers Likely

    • 69
    • 87

    Chance Thunderstorms

    • 63
    • 80

    Slight Chance Rain Showers

    • 62
    • 79

    Partly Sunny

Today 12 Aug Polk

Mostly cloudy early this Morning, then becoming mostly sunny. Showers with a slight chance of Thunderstorms early this morning. Some Thunderstorms may be severe with damaging Winds and large hail. Highs in the upper 80s. Northeast Winds 5 to 10 Mph. Chance of rain 80 percent.

Tonight 12 Aug Polk

Mostly cloudy. Showers likely with a chance of Thunderstorms after midnight. Humid with Lows around 70. East Winds 5 to 10 Mph. Chance of rain 70 percent. Heat index Values up to 100 early in the evening.

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Saylorville Temperature Statistics

August Temperature

Ankeny Regional Airport (3.1 miles)

  • Lowest 8 August, 2026

    60.8 °F

  • Average August

    73.6 °F

  • Highest 10 August, 2026

    89.6 °F

Climate (2021–2026)

Ankeny Regional Airport (3.1 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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