Whitewater Lake Weather Forecast

    • 55
    • 82

    Rain Showers

    • 59
    • 80

    Mostly Sunny

    • 56
    • 83

    Rain Showers Likely

    • 53
    • 71

    Partly Sunny

    • 53
    • 74

    Mostly Cloudy

    • 53
    • 76

    Chance Rain Showers

Today 11 Jun Walworth

Patchy fog in the morning. Scattered Showers and chance of Thunderstorms in the late morning and early afternoon. Showers with Thunderstorms likely late in the afternoon. Locally heavy rainfall possible late in the afternoon. Highs in the mid 80s. Southwest Winds 5 to 10 Mph shifting to the south 10 to 20 Mph in the afternoon. Chance of precipitation near 100 percent.

Tonight 11 Jun Walworth

Mostly cloudy. Chance of Showers and isolated Thunderstorms after midnight. Patchy fog early in the morning. Near steady temperature in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of precipitation 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Whitewater Lake Temperature Statistics

June Temperature

Janesville-Rock County (19.9 miles)

  • Lowest 3 June, 2026

    44.6 °F
  • Average June

    66.7 °F
  • Highest 4 June, 2026

    87.8 °F

Climate (2021–Present)

Janesville-Rock County (19.9 miles)

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  • Average Low 2021–2026

    40.3 °F
  • Average 2021–2026

    48.7 °F
  • Average High 2021–2026

    60.4 °F
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