Gilbert Bay Weather Forecast

    • -1
    • 20

    Partly Sunny

    • -6
    • 3

    Cold

    • -11
    • 3

    Cold

    • -5
    • 2

    Cold

    • 11
    • 21

    Mostly Cloudy

    • 9
    • 25

    Mostly Cloudy

Today 18 Jan Jefferson

Much Colder. Mostly cloudy in the morning then clearing. Highs around 20. Northwest Winds 10 to 20 Mph.

Tonight 18 Jan Jefferson

Colder. Partly cloudy until early morning then becoming mostly cloudy. Lows around 2 below. Northwest Winds 10 to 15 Mph.

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Gilbert Bay Temperature Statistics

January Temperature

Janesville-Rock County (18.6 miles)

  • Lowest 15 January, 2025

    -0.4 °F

  • Average January

    18 °F

  • Highest 12 January, 2025

    32 °F

Climate (2020–Present)

Janesville-Rock County (18.6 miles)

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  • Average Low 2020–2025

    40.7 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    60.2 °F
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