Whitewater Weather Forecast

    • 34
    • 53

    Decreasing Clouds

    • 31
    • 50

    Partly Sunny

    • 38
    • 55

    Partly Sunny

    • 43
    • 65

    Chance Rain Showers

    • 41
    • 65

    Chance Rain Showers

    • 45
    • 66

    Chance Rain Showers

Today 30 Apr Walworth

Mostly cloudy. A 40 percent chance of light rain Showers in the late morning and afternoon. Highs in the lower 50s. Northwest Winds 5 to 10 Mph.

Tonight 30 Apr Walworth

Mostly cloudy with a 50 percent chance of light rain Showers through around Midnight, then partly cloudy after midnight. Widespread frost after midnight. Lows in the mid 30s. North Winds up to 10 Mph.

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Whitewater Temperature Statistics

April Temperature

Janesville-Rock County (21.1 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    47.9 °F

  • Highest 17 April, 2026

    78.8 °F

Climate (2021–Present)

Janesville-Rock County (21.1 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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