Jamestown Weather Forecast

    • 61
    • 81

    Decreasing Clouds

    • 64
    • 79

    Partly Cloudy

    • 62
    • 79

    Rain Showers Likely

    • 57
    • 76

    Partly Sunny

    • 59
    • 77

    Mostly Sunny

    • 62
    • 77

    Chance Rain Showers

    • 60
    • 77

    Partly Sunny

Today 16 Aug Grant

Mostly sunny. Near steady temperature around 80. Northwest Winds 10 to 15 Mph.

Tonight 16 Aug Grant

Partly cloudy. Patchy fog after midnight. Cooler with Lows around 60. Northwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • 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)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    58.8 °F
Get WillyWeather+ to remove ads