Darien Weather Forecast

    • 39
    • 47

    Rain

    • 49
    • 67

    Rain

    • 33
    • 57

    Chance Rain

    • 42
    • 58

    Mostly Sunny

    • 45
    • 68

    Mostly Sunny

    • 30
    • 59

    Rain Likely

Today 5 Mar Walworth

Cloudy. Patchy fog in the morning. A 50 percent chance of light rain until late afternoon. Highs in the upper 40s. Northeast Winds 5 to 10 Mph.

Tonight 5 Mar Walworth

Not as cool. Cloudy with a 20 percent chance of light rain. Patchy fog. Near steady temperature in the upper 30s. Northeast Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Darien Temperature Statistics

March Temperature

Janesville-Rock County (16.8 miles)

  • Lowest 1 March, 2026

    10.4 °F

  • Average March

    24.6 °F

  • Highest 2 March, 2026

    44.6 °F

Climate (2021–Present)

Janesville-Rock County (16.8 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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