Rock Falls Weather Forecast

    • 24
    • 30

    Increasing Clouds

    • 34
    • 41

    Mostly Cloudy

    • 29
    • 45

    Mostly Cloudy

    • 42
    • 47

    Chance Rain

    • 36
    • 57

    Mostly Cloudy

    • 31
    • 47

    Mostly Cloudy

Today 21 Dec Whiteside

Sunny. Highs around 30. Southwest Winds around 5 Mph.

Tonight 21 Dec Whiteside

Partly cloudy in the Evening, then becoming cloudy. Not as cool with Lows in the lower 20s. Temperature rising into the upper 20s after midnight. South Winds 5 to 10 Mph.

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Rock Falls Temperature Statistics

December Temperature

Sterling Rockfalls (2.5 miles)

  • Lowest 4 December, 2025

    -5.1 °F

  • Average December

    21 °F

  • Highest 18 December, 2025

    50 °F

Climate (2020–Present)

Sterling Rockfalls (2.5 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    51.6 °F

  • Average High 2020–2025

    61.6 °F
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