Jamestown Weather Forecast

    • 11
    • 34

    Chance Snow

    • 4
    • 16

    Chance Snow

    • -2
    • 19

    Slight Chance Snow

    • 0
    • 6

    Cold

    • 12
    • 17

    Mostly Cloudy

    • 11
    • 26

    Mostly Cloudy

Today 16 Jan Grant

Mostly cloudy with a 40 percent chance of snow. Patchy blowing snow this afternoon. Additional snow accumulation little or no. Highs in the mid 30s. Temperature falling into the upper 20s this afternoon. West Winds 10 to 20 Mph. Gusts up to 30 Mph this afternoon.

Tonight 16 Jan Grant

Mostly cloudy. A slight chance of snow in the Evening, then a chance of snow after midnight. Snow accumulation little or no. Colder with Lows around 10 above. West Winds 10 to 20 Mph. Gusts up to 30 Mph in the evening. Chance of snow 30 percent.

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Jamestown Temperature Statistics

January Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 1 January, 2026

    10.8 °F

  • Average January

    30.1 °F

  • Highest 8 January, 2026

    55.4 °F

Climate (2021–Present)

Platteville Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.7 °F
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