Darien Weather Forecast

    • 32
    • 51

    Mostly Sunny

    • 41
    • 53

    Mostly Cloudy

    • 42
    • 58

    Mostly Cloudy

    • 41
    • 57

    Chance Rain Showers

    • 41
    • 56

    Chance Rain Showers

    • 38
    • 54

    Slight Chance Rain Showers

Today 24 Oct Walworth

Sunny. Widespread frost in the morning. Highs in the lower 50s. Northwest Winds up to 5 Mph.

Tonight 24 Oct Walworth

Mostly clear. Widespread frost in the late evening and overnight. Lows in the lower 30s. Calm Winds becoming southeast up to 5 Mph after midnight.

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Darien Temperature Statistics

October Temperature

Janesville-Rock County (16.8 miles)

  • Lowest 9 October, 2025

    35.6 °F

  • Average October

    57.3 °F

  • Highest 3 October, 2025

    87.8 °F

Climate (2020–Present)

Janesville-Rock County (16.8 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    60.4 °F
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