Whitewater Lake Weather Forecast

    • 57
    • 69

    Chance Rain Showers

    • 55
    • 80

    Partly Sunny

    • 56
    • 75

    Partly Sunny

    • 56
    • 78

    Partly Sunny

    • 48
    • 68

    Slight Chance Rain Showers

    • 50
    • 66

    Chance Rain Showers

Today 9 Oct Walworth

Mostly cloudy. Slight chance of light rain Showers late in the morning. Chance of light rain Showers and slight chance of Thunderstorms in the afternoon. Highs in the upper 60s. Southeast Winds up to 10 Mph. Chance of precipitation 50 percent.

Tonight 9 Oct Walworth

Mostly clear. Lows in the upper 50s. Southeast Winds 5 to 10 Mph.

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Whitewater Lake Temperature Statistics

October Temperature

Janesville-Rock County (19.9 miles)

  • Lowest 2 October, 2026

    41 °F

  • Average October

    54.7 °F

  • Highest 6 October, 2026

    73.4 °F

Climate (2021–2026)

Janesville-Rock County (19.9 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    60.1 °F
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