Rock Valley Weather Forecast

    • 54
    • 82

    Increasing Clouds

    • 61
    • 80

    Rain Showers Likely

    • 62
    • 78

    Chance Rain Showers

    • 59
    • 83

    Slight Chance Thunderstorms

    • 56
    • 82

    Mostly Sunny

    • 59
    • 81

    Chance Rain Showers

    • 62
    • 81

    Chance Rain Showers

Today 22 Aug Sioux

Sunny. Near steady temperature in the lower 80s. North Winds around 5 Mph.

Tonight 22 Aug Sioux

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Valley Temperature Statistics

August Temperature

Sheldon (23 miles)

  • Lowest 8 August, 2026

    48.2 °F

  • Average August

    70 °F

  • Highest 11 August, 2026

    86 °F

Climate (2021–2026)

Sheldon (23 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    58.2 °F
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