Sugar River Forest Preserve Weather Forecast

    • 3
    • 22

    Blizzard

    • 17
    • 21

    Snow Showers

    • 29
    • 40

    Partly Sunny

    • 31
    • 46

    Mostly Cloudy

    • 37
    • 53

    Mostly Cloudy

    • 35
    • 59

    Mostly Sunny

Today 16 Mar Winnebago

Cloudy. Areas of blowing and Drifting snow in the morning. Patchy blowing and Drifting snow in the afternoon. Snow in the Morning, then a chance of snow early in the afternoon. A slight chance of snow late. Snow accumulation of 1 to 3 Inches. Windy. Near steady temperature in the lower 20s. Northwest Winds 15 to 25 Mph with Gusts up to 45 Mph. Chance of precipitation 90 percent.

Tonight 16 Mar Winnebago

Mostly cloudy in the Evening, then clearing. Patchy blowing and Drifting snow early in the evening. Blustery with Lows around 3 above. Northwest Winds 15 to 20 Mph, Diminishing to 10 to 15 Mph after midnight. Gusts up to 30 Mph. Wind chill Values as low as 11 below after midnight.

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Sugar River Forest Preserve Temperature Statistics

March Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 1 March, 2026

    10.4 °F

  • Average March

    38.3 °F

  • Highest 9 March, 2026

    71.6 °F

Climate (2021–Present)

Janesville-Rock County (14.3 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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