Jamestown Weather Forecast

    • 64
    • 82

    Rain Showers

    • 57
    • 74

    Chance Rain Showers

    • 60
    • 79

    Mostly Sunny

    • 64
    • 81

    Mostly Sunny

    • 65
    • 81

    Chance Rain Showers

    • 68
    • 82

    Chance Rain Showers

    • 66
    • 83

    Chance Thunderstorms

Today 4 Aug Grant

Mostly cloudy with isolated Showers and Thunderstorms. Highs in the lower 80s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 4 Aug Grant

Scattered Thunderstorms. Showers. Lows in the lower 60s. Northwest Winds 5 to 10 Mph. Chance of rain 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

August Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 1 August, 2026

    66.6 °F

  • Average August

    72.6 °F

  • Highest 2 August, 2026

    80.8 °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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