Jamestown Weather Forecast

    • 59
    • 84

    Rain Showers Likely

    • 66
    • 84

    Rain Showers Likely

    • 64
    • 82

    Rain Showers

    • 47
    • 76

    Chance Rain Showers

    • 43
    • 63

    Partly Sunny

    • 45
    • 65

    Partly Sunny

    • 49
    • 70

    Partly Sunny

Today 16 May Grant

Mostly sunny. Highs in the lower 80s. Light Winds.

Tonight 16 May Grant

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 50s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Jamestown Temperature Statistics

May Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 2 May, 2026

    32 °F

  • Average May

    53.4 °F

  • Highest 4 May, 2026

    80.8 °F

Climate (2021–Present)

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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