Rock Valley Weather Forecast

    • 12
    • 22

    Snow

    • 6
    • 32

    Snow Likely

    • -14
    • 18

    Mostly Cloudy

    • -16
    • -3

    Cold

    • -5
    • 8

    Cold

    • 2
    • 18

    Partly Sunny

Today 20 Jan Sioux

Partly sunny this Morning, then snow this afternoon. Snow accumulation up to 1 inch. Not as cool with Highs in the lower 20s. South Winds 5 to 10 Mph. Chance of snow near 100 percent.

Tonight 20 Jan Sioux

Snow in the evening. Snow accumulation around an inch. Not as cold with Lows around 12. Southwest Winds 5 to 10 Mph, becoming northwest after midnight. Chance of snow near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Valley Temperature Statistics

January Temperature

Sheldon (23 miles)

  • Lowest 17 January, 2026

    3.2 °F

  • Average January

    27.2 °F

  • Highest 7 January, 2026

    51.8 °F

Climate (2021–Present)

Sheldon (23 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    58.1 °F
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