Jamestown Weather Forecast

    • 62
    • 82

    Slight Chance Thunderstorms

    • 61
    • 83

    Mostly Sunny

    • 66
    • 85

    Partly Sunny

    • 68
    • 85

    Rain Showers Likely

    • 64
    • 82

    Slight Chance Thunderstorms

    • 63
    • 82

    Partly Sunny

Today 5 Jul Grant

Mostly cloudy in the Morning, then becoming mostly sunny. Patchy fog in the morning. Humid with Highs in the lower 80s. Northeast Winds 5 to 10 Mph.

Tonight 5 Jul Grant

Mostly cloudy. Patchy fog. Near steady temperature in the mid 60s. Northeast Winds around 5 Mph.

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Jamestown Temperature Statistics

July Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 2 July, 2026

    69.4 °F

  • Average July

    80.2 °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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