Jamestown Weather Forecast

    • 68
    • 87

    Increasing Clouds

    • 65
    • 82

    Chance Thunderstorms

    • 64
    • 82

    Partly Sunny

    • 65
    • 83

    Mostly Sunny

    • 67
    • 86

    Mostly Sunny

    • 69
    • 88

    Mostly Sunny

Today 8 Jul Grant

Mostly sunny. Highs in the upper 80s. Southwest Winds 5 to 10 Mph.

Tonight 8 Jul Grant

Mostly cloudy with a chance of Showers and Thunderstorms. Humid with Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Jamestown Temperature Statistics

July Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 4 July, 2026

    67.5 °F

  • Average July

    77.7 °F

  • Highest 1 July, 2026

    89.8 °F

Climate (2021–2026)

Platteville Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.8 °F
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