Rock Rapids Weather Forecast

    • 61
    • 76

    Rain Showers Likely

    • 57
    • 77

    Chance Thunderstorms

    • 56
    • 73

    Chance Rain Showers

    • 57
    • 78

    Mostly Cloudy

    • 58
    • 80

    Partly Sunny

    • 53
    • 79

    Slight Chance Thunderstorms

    • 52
    • 76

    Mostly Sunny

Today 17 Sep Lyon

Mostly cloudy. A chance of Showers and Thunderstorms Early, then Showers and Thunderstorms likely. Not as warm with Highs in the mid 70s. Light and variable Winds, becoming southeast 5 to 10 Mph. Chance of rain 70 percent.

Tonight 17 Sep Lyon

Mostly cloudy. Showers likely with a chance of Thunderstorms this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 60s. Southeast Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Real-Time

Rock Rapids Temperature Statistics

September Temperature

Quentin Aanenson Field Airport (13 miles)

  • Lowest 7 September, 2025

    37.4 °F

  • Average September

    65.2 °F

  • Highest 13 September, 2025

    91.4 °F

Climate (2020–Present)

Quentin Aanenson Field Airport (13 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    57.3 °F
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