Fairfield Weather Forecast

    • 48
    • 60

    Rain Showers Likely

    • 50
    • 65

    Mostly Cloudy

    • 57
    • 66

    Rain Showers Likely

    • 50
    • 69

    Rain Showers Likely

    • 45
    • 63

    Chance Rain Showers

    • 44
    • 64

    Chance Rain Showers

Today 31 Oct Walworth

Cloudy with scattered light rain Showers. Highs around 60. Southeast Winds 5 to 10 Mph. Chance of Showers 50 percent.

Tonight 31 Oct Walworth

Mostly cloudy. Isolated light rain Showers through around midnight. Lows in the upper 40s. Southeast Winds up to 5 Mph. Chance of Showers 20 percent.

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Fairfield Temperature Statistics

October Temperature

Janesville-Rock County (13 miles)

  • Lowest 17 October, 2026

    32 °F

  • Average October

    55 °F

  • Highest 12 October, 2026

    86 °F

Climate (2021–2026)

Janesville-Rock County (13 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.6 °F

  • Average High 2021–2026

    60.2 °F
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