Fairfield Weather Forecast

    • 15
    • 31

    Partly Sunny

    • 27
    • 40

    Decreasing Clouds

    • 25
    • 57

    Partly Sunny

    • 13
    • 32

    Snow Likely

    • 15
    • 28

    Chance Snow

    • 20
    • 34

    Chance Snow

    • 23
    • 39

    Slight Chance Snow

Today 25 Feb Walworth

Sunny. Northwest Winds 10 to 15 Mph.

Tonight 25 Feb Walworth

Mostly clear. Lows around 15. Northwest Winds up to 5 Mph through around midnight becoming calm.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfield Temperature Statistics

February Temperature

Janesville-Rock County (13 miles)

  • Lowest 4 February, 2026

    -4 °F

  • Average February

    27.9 °F

  • Highest 16 February, 2026

    64.4 °F

Climate (2021–Present)

Janesville-Rock County (13 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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