Lake Lorraine Weather Forecast

    • 59
    • 71

    Chance Rain Showers

    • 55
    • 73

    Chance Rain Showers

    • 63
    • 71

    Rain Showers

    • 60
    • 77

    Rain Showers

    • 56
    • 66

    Chance Rain Showers

    • 54
    • 64

    Chance Rain Showers

    • 54
    • 65

    Slight Chance Rain Showers

Today 16 Sep Walworth

Partly sunny. Highs in the lower 70s.

Tonight 16 Sep Walworth

Cloudy. Chance of Sprinkles late in the evening. Chance of light Showers and Thunderstorms after midnight. Lows around 60. Northeast Winds up to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Lorraine Temperature Statistics

September Temperature

Janesville-Rock County (17.4 miles)

  • Lowest 14 September, 2026

    42.8 °F

  • Average September

    68.3 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (17.4 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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