Fairfield Weather Forecast

    • 54
    • 76

    Slight Chance Rain Showers

    • 55
    • 73

    Slight Chance Rain Showers

    • 62
    • 79

    Partly Sunny

    • 73
    • 87

    Partly Sunny

    • 75
    • 92

    Partly Sunny

    • 73
    • 93

    Chance Rain Showers

Today 25 Jun Walworth

Partly sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 25 Jun Walworth

Partly cloudy. Areas of fog. Near steady temperature in the upper 50s. West Winds up to 5 Mph.

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Fairfield Temperature Statistics

June Temperature

Janesville-Rock County (13 miles)

  • Lowest 3 June, 2026

    44.6 °F

  • Average June

    65.2 °F

  • Highest 4 June, 2026

    87.8 °F

Climate (2021–2026)

Janesville-Rock County (13 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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