Rock Valley Weather Forecast

    • 62
    • 89

    Chance Thunderstorms

    • 61
    • 81

    Rain Showers

    • 59
    • 78

    Rain Showers Likely

    • 55
    • 73

    Rain Showers Likely

    • 57
    • 76

    Slight Chance Rain Showers

    • 58
    • 79

    Slight Chance Thunderstorms

Today 16 Sep Sioux

Sunny. Highs in the upper 80s. South Winds around 10 Mph.

Tonight 16 Sep Sioux

Partly cloudy in the Evening, then mostly cloudy with a chance of Thunderstorms with a slight chance of Showers after midnight. Humid with Lows in the lower 60s. South Winds around 5 Mph. Chance of rain 30 percent.

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Rock Valley Temperature Statistics

September Temperature

Sheldon (23 miles)

  • Lowest 6 September, 2025

    35.6 °F

  • Average September

    63 °F

  • Highest 13 September, 2025

    89.6 °F

Climate (2020–Present)

Sheldon (23 miles)

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  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    47.1 °F

  • Average High 2020–2025

    58 °F
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