Whitewater Lake Weather Forecast

    • 32
    • 58

    Decreasing Clouds

    • 44
    • 61

    Becoming Sunny

    • 42
    • 68

    Mostly Sunny

    • 32
    • 62

    Rain

    • 22
    • 42

    Chance Rain/Snow

    • 33
    • 45

    Chance Rain/Snow

    • 24
    • 54

    Chance Snow

Today 7 Mar Walworth

Mostly cloudy. West Winds 10 to 15 Mph.

Tonight 7 Mar Walworth

Much Colder. Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 30s. West Winds 5 to 15 Mph.

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  • Temperature Real-Time

Whitewater Lake Temperature Statistics

March Temperature

Janesville-Rock County (19.9 miles)

  • Lowest 1 March, 2026

    10.4 °F

  • Average March

    32.2 °F

  • Highest 4 March, 2026

    50 °F

Climate (2021–Present)

Janesville-Rock County (19.9 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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