Wayside Park Weather Forecast

    • 42
    • 69

    Increasing Clouds

    • 24
    • 43

    Mostly Cloudy

    • 30
    • 46

    Partly Sunny

    • 34
    • 56

    Mostly Cloudy

    • 40
    • 52

    Mostly Cloudy

    • 27
    • 57

    Chance Rain

Today 21 Mar Jefferson

Partly sunny. Highs in the upper 60s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 21 Mar Jefferson

Mostly cloudy. Lows in the lower 40s. West Winds 5 to 10 Mph shifting to the northeast after midnight. Gusts up to 25 Mph.

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Wayside Park Temperature Statistics

March Temperature

Janesville-Rock County (18 miles)

  • Lowest 1 March, 2026

    10.4 °F

  • Average March

    36.6 °F

  • Highest 9 March, 2026

    71.6 °F

Climate (2021–Present)

Janesville-Rock County (18 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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