Fairfield Weather Forecast

    • 62
    • 81

    Sunny

    • 55
    • 83

    Rain Showers

    • 48
    • 68

    Mostly Sunny

    • 51
    • 73

    Partly Sunny

    • 52
    • 75

    Chance Thunderstorms

    • 57
    • 76

    Rain Showers Likely

    • 54
    • 76

    Chance Rain Showers

Today 12 Jun Walworth

Sunny. West Winds around 15 Mph with Gusts to around 30 Mph.

Tonight 12 Jun Walworth

Clear. Lows in the upper 50s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfield Temperature Statistics

June Temperature

Janesville-Rock County (13 miles)

  • Lowest 3 June, 2026

    44.6 °F

  • Average June

    68.1 °F

  • Highest 4 June, 2026

    87.8 °F

Climate (2021–Present)

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

    60.4 °F
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