Jamestown Weather Forecast

    • 45
    • 64

    Becoming Sunny

    • 60
    • 79

    Thunderstorms Likely

    • 36
    • 73

    Rain Showers Likely

    • 32
    • 46

    Rain/Snow Likely

    • 31
    • 43

    Rain Showers Likely

    • 41
    • 52

    Rain Showers Likely

    • 37
    • 57

    Rain Showers Likely

Today 29 Mar Grant

Partly sunny. Warmer with Highs in the mid 60s. South Winds 10 to 15 Mph.

Tonight 29 Mar Grant

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 40s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

March Temperature

Platteville Municipal Airport (8.7 miles)

  • Lowest 16 March, 2026

    12.7 °F

  • Average March

    41 °F

  • Highest 21 March, 2026

    81 °F

Climate (2021–Present)

Platteville Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    58.7 °F
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