Jamestown Weather Forecast

    • 76
    • 92

    Increasing Clouds

    • 75
    • 92

    Mostly Sunny

    • 75
    • 92

    Slight Chance Rain Showers

    • 73
    • 92

    Chance Thunderstorms

    • 72
    • 91

    Chance Thunderstorms

    • 71
    • 91

    Chance Thunderstorms

Today 29 Jun Grant

Mostly sunny. Hot with Highs in the lower 90s. South Winds 10 to 20 Mph. Gusts up to 30 Mph in the afternoon. Heat index Values up to 110 in the afternoon.

Tonight 29 Jun Grant

Partly cloudy. Warmer with Lows in the mid 70s. South Winds 5 to 10 Mph.

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Jamestown Temperature Statistics

June Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 15 June, 2026

    49.1 °F

  • Average June

    68.2 °F

  • Highest 6 June, 2026

    86 °F

Climate (2021–2026)

Platteville Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    58.8 °F
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