Roscoe Weather Forecast

    • 9
    • 24

    Snow Showers

    • -14
    • 20

    Decreasing Clouds

    • -13
    • -6

    Cold

    • -2
    • 3

    Chance Snow

    • -5
    • 12

    Slight Chance Snow

    • -1
    • 8

    Cold

    • 3
    • 18

    Mostly Cloudy

Today 21 Jan Winnebago

Mostly cloudy. Snow Showers likely late. Little or no snow accumulation. Highs in the mid 20s. West Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of precipitation 70 percent.

Tonight 21 Jan Winnebago

Mostly cloudy in the Evening, then becoming partly cloudy. Numerous snow Showers early in the evening. Scattered snow Showers late in the evening. Patchy blowing and Drifting snow until early morning. Snow accumulation around an inch. Windy. Lows around 9 above. West Winds 15 to 25 Mph, becoming 15 to 20 Mph after midnight. Gusts up to 40 Mph. Chance of precipitation 70 percent.

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Roscoe Temperature Statistics

January Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 19 January, 2026

    -4 °F

  • Average January

    25.5 °F

  • Highest 8 January, 2026

    55.4 °F

Climate (2021–Present)

Janesville-Rock County (14.3 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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