Rock Valley Weather Forecast

    • 59
    • 78

    Chance Thunderstorms

    • 58
    • 80

    Rain Showers Likely

    • 56
    • 82

    Partly Sunny

    • 58
    • 83

    Chance Thunderstorms

    • 60
    • 82

    Rain Showers Likely

    • 59
    • 82

    Rain Showers Likely

Today 30 May Sioux

Numerous Showers. Isolated Thunderstorms Early, then scattered Thunderstorms. Near steady temperature in the lower 70s. Southeast Winds around 20 Mph with Gusts up to 30 Mph. Chance of rain 60 percent.

Tonight 30 May Sioux

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 50s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Valley Temperature Statistics

May Temperature

Sheldon (23 miles)

  • Lowest 6 May, 2026

    26.6 °F

  • Average May

    59.9 °F

  • Highest 25 May, 2026

    91.4 °F

Climate (2021–Present)

Sheldon (23 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.5 °F
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