Whitewater Lake Weather Forecast

    • 18
    • 33

    Decreasing Clouds

    • 30
    • 42

    Mostly Cloudy

    • 32
    • 44

    Rain Likely

    • 36
    • 46

    Mostly Cloudy

    • 39
    • 54

    Chance Rain

    • 36
    • 61

    Rain Likely

Today 1 Mar Walworth

Partly sunny. Highs in the lower 30s. Northeast Winds 5 to 10 Mph.

Tonight 1 Mar Walworth

Mostly cloudy after midnight then becoming partly cloudy. Lows around 17. Northeast Winds 5 to 10 Mph.

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Whitewater Lake Temperature Statistics

March Temperature

Janesville-Rock County (19.9 miles)

  • Lowest

  • Average March

  • Highest

Climate (2021–Present)

Janesville-Rock County (19.9 miles)

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  • Average Low 2021–2026

    40.4 °F
  • Average 2021–2026

    48.8 °F
  • Average High 2021–2026

    60.4 °F
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