Jamestown Weather Forecast

    • 55
    • 70

    Chance Rain Showers

    • 45
    • 67

    Rain Showers

    • 43
    • 60

    Mostly Cloudy

    • 40
    • 60

    Partly Sunny

    • 38
    • 59

    Slight Chance Rain Showers

    • 38
    • 58

    Partly Sunny

    • 44
    • 63

    Partly Sunny

Today 26 Apr Grant

Partly sunny. Highs around 70. Southeast Winds 10 to 15 Mph.

Tonight 26 Apr Grant

Mostly cloudy. A slight chance of Showers this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Warmer with Lows in the mid 50s. Southeast Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Jamestown Temperature Statistics

April Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 7 April, 2026

    23.5 °F

  • Average April

    48.4 °F

  • Highest 17 April, 2026

    78.1 °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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