Rock River Park Weather Forecast

    • -17
    • 18

    Flurries

    • -16
    • -5

    Cold

    • -3
    • 3

    Chance Snow

    • -8
    • 10

    Chance Snow

    • 0
    • 8

    Cold

    • -1
    • 16

    Mostly Cloudy

    • -5
    • 11

    Mostly Cloudy

Today 22 Jan Jefferson

Light snow. Patchy blowing snow. Little new snow accumulation. West Winds 15 to 20 Mph with Gusts to around 35 Mph. Chance of snow 80 percent.

Tonight 22 Jan Jefferson

Bitterly cold. Much Colder. Partly cloudy. Chance of light snow in the Evening, then chance of Flurries late in the evening. Lows around 17 below. Northwest Winds 15 to 20 Mph with Gusts to around 35 Mph. Chance of snow 40 percent. Lowest wind chill Readings 30 below to 40 below zero in the late evening and overnight.

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  • Temperature Real-Time

Rock River Park Temperature Statistics

January Temperature

Watertown (17.4 miles)

  • Lowest 20 January, 2026

    -11.2 °F

  • Average January

    23.2 °F

  • Highest 9 January, 2026

    55.2 °F

Climate (2021–Present)

Watertown (17.4 miles)

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  • Average Low 2021–2026

    35.6 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    54.5 °F
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