Jamestown Weather Forecast

    • 65
    • 75

    Rain Showers

    • 67
    • 77

    Rain Showers

    • 69
    • 83

    Rain Showers Likely

    • 63
    • 80

    Chance Thunderstorms

    • 61
    • 78

    Partly Sunny

    • 65
    • 78

    Chance Rain Showers

    • 61
    • 78

    Chance Rain Showers

Today 13 Aug Grant

Showers with a chance of Thunderstorms. Patchy fog. Near steady temperature in the lower 70s. East Winds 5 to 10 Mph. Chance of rain 100 percent.

Tonight 13 Aug Grant

A chance of Thunderstorms. Showers likely this Evening, then a chance of Showers after midnight. Patchy fog. Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

August Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 3 August, 2026

    59.9 °F

  • Average August

    73.8 °F

  • Highest 10 August, 2026

    84.2 °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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