Fairfield Weather Forecast

    • 55
    • 79

    Rain Showers

    • 59
    • 86

    Partly Sunny

    • 60
    • 88

    Partly Sunny

    • 56
    • 85

    Slight Chance Thunderstorms

    • 53
    • 80

    Partly Sunny

    • 54
    • 80

    Partly Sunny

    • 54
    • 77

    Mostly Sunny

Today 24 May Walworth

Sunny. Near steady temperature in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 24 May Walworth

Clear. Lows in the mid 50s. Southeast Winds up to 5 Mph shifting to the south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfield Temperature Statistics

May Temperature

Janesville-Rock County (13 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    53.8 °F

  • Highest 17 May, 2026

    84.2 °F

Climate (2021–Present)

Janesville-Rock County (13 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.4 °F
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