Tower Hill State Park Weather Forecast

    • 61
    • 86

    Chance Rain Showers

    • 60
    • 80

    Rain Showers Likely

    • 61
    • 78

    Chance Thunderstorms

    • 61
    • 78

    Chance Thunderstorms

    • 58
    • 78

    Chance Rain Showers

    • 54
    • 75

    Slight Chance Rain Showers

Today 18 Sep Iowa

Partly sunny. A 20 percent chance of light Showers late in the afternoon. Highs in the mid 80s. South Winds up to 5 Mph.

Tonight 18 Sep Iowa

Partly cloudy until early morning then becoming mostly cloudy. Chance of light Showers and slight chance of Thunderstorms. Lows in the lower 60s. East Winds up to 5 Mph. Chance of precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tower Hill State Park Temperature Statistics

September Temperature

Lone Rock Tri-County Regional Airport (8.1 miles)

  • Lowest 7 September, 2025

    37.9 °F

  • Average September

    62.3 °F

  • Highest 15 September, 2025

    86 °F

Climate (2020–Present)

Lone Rock Tri-County Regional Airport (8.1 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    60 °F
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