Fairfield Weather Forecast

    • 68
    • 89

    Rain Showers Likely

    • 69
    • 88

    Rain Showers Likely

    • 70
    • 90

    Chance Thunderstorms

    • 62
    • 81

    Chance Thunderstorms

    • 60
    • 83

    Mostly Sunny

    • 63
    • 84

    Chance Rain Showers

    • 61
    • 83

    Chance Rain Showers

Today 3 Jul Walworth

Partly sunny with a 20 percent chance of light Showers and Thunderstorms. Southwest Winds around 5 Mph.

Tonight 3 Jul Walworth

Mostly clear in the Evening, then chance of light Showers and Thunderstorms in the late evening and early morning. Mostly cloudy with Showers likely and chance of Thunderstorms early in the morning. Lows in the upper 60s. Southeast Winds up to 5 Mph. Chance of precipitation 70 percent.

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Fairfield Temperature Statistics

July Temperature

Janesville-Rock County (13 miles)

  • Lowest 1 July, 2025

    60.8 °F

  • Average July

    70 °F

  • Highest 1 July, 2025

    84.2 °F

Climate (2020–Present)

Janesville-Rock County (13 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    60.3 °F
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