Fairfield Weather Forecast

    • 59
    • 82

    Partly Sunny

    • 68
    • 84

    Rain Showers Likely

    • 58
    • 83

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 61
    • 81

    Slight Chance Thunderstorms

Today 19 Jul Walworth

Partly sunny. Patchy smoke. Highs in the lower 80s. East Winds around 5 Mph.

Tonight 19 Jul Walworth

Mostly clear. Patchy smoke. Lows in the upper 50s. Southeast Winds up to 5 Mph shifting to the south after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfield Temperature Statistics

July Temperature

Janesville-Rock County (13 miles)

  • Lowest 12 July, 2026

    53.6 °F

  • Average July

    74.7 °F

  • Highest 14 July, 2026

    95 °F

Climate (2021–2026)

Janesville-Rock County (13 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.4 °F
Get WillyWeather+ to remove ads