Jamestown Weather Forecast

    • 47
    • 70

    Chance Thunderstorms

    • 49
    • 71

    Chance Thunderstorms

    • 47
    • 69

    Rain Showers Likely

    • 47
    • 64

    Thunderstorms Likely

    • 49
    • 63

    Chance Thunderstorms

    • 47
    • 66

    Chance Thunderstorms

    • 47
    • 64

    Chance Thunderstorms

Today 24 May Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy. Slight chance of Thunderstorms early in the Afternoon, then a chance of Thunderstorms late in the afternoon. Highs 67 to 77. Chance of precipitation 30 percent.

Tonight 24 May Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy with a slight chance of Thunderstorms early in the Evening, then partly cloudy overnight. Lows 41 to 51. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

May Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 1 May, 2026

    32 °F

  • Average May

    56.7 °F

  • Highest 11 May, 2026

    87.8 °F

Climate (2021–Present)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    66.2 °F
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