Jamestown Weather Forecast

    • 34
    • 54

    Increasing Clouds

    • 25
    • 44

    Chance Rain

    • 33
    • 38

    Mostly Cloudy

    • 25
    • 50

    Mostly Cloudy

    • 16
    • 33

    Mostly Cloudy

    • 18
    • 29

    Mostly Cloudy

Today 30 Jan Grant

Mostly sunny. Highs in the mid 50s. Southwest Winds 5 to 10 Mph.

Tonight 30 Jan Grant

Mostly clear. Lows in the upper 20s. South Winds 5 to 10 Mph.

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Jamestown Temperature Statistics

January Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 21 January, 2025

    -15 °F

  • Average January

    17 °F

  • Highest 17 January, 2025

    50 °F

Climate (2020–Present)

Platteville Municipal Airport (8.7 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    58.2 °F
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