Fairfield Weather Forecast

    • 36
    • 48

    Increasing Clouds

    • 43
    • 63

    Partly Sunny

    • 58
    • 73

    Rain Showers Likely

    • 33
    • 74

    Rain Showers Likely

    • 28
    • 46

    Partly Sunny

    • 33
    • 45

    Chance Snow

Today 28 Mar Walworth

Sunny. Highs in the upper 40s. Southwest Winds up to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 28 Mar Walworth

Not as cool. Partly cloudy. Lows in the mid 30s. Southwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fairfield Temperature Statistics

March Temperature

Janesville-Rock County (13 miles)

  • Lowest 1 March, 2026

    10.4 °F

  • Average March

    38.8 °F

  • Highest 21 March, 2026

    77 °F

Climate (2021–Present)

Janesville-Rock County (13 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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