Jamestown Weather Forecast

    • 59
    • 77

    Increasing Clouds

    • 63
    • 78

    Partly Sunny

    • 68
    • 85

    Partly Sunny

    • 74
    • 90

    Slight Chance Thunderstorms

    • 70
    • 91

    Mostly Sunny

    • 67
    • 87

    Mostly Sunny

Today 23 Jul Grant

Mostly sunny. Highs in the upper 70s. Southwest Winds around 5 Mph.

Tonight 23 Jul Grant

Mostly cloudy. Lows in the upper 50s. Light Winds.

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Jamestown Temperature Statistics

July Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 7 July, 2026

    61.2 °F

  • Average July

    77.4 °F

  • Highest 15 July, 2026

    90.9 °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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