Jamestown Weather Forecast

    • 48
    • 74

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

    • 55
    • 77

    Partly Sunny

    • 44
    • 73

    Chance Thunderstorms

    • 45
    • 71

    Slight Chance Thunderstorms

    • 46
    • 71

    Chance Rain Showers

    • 40
    • 66

    Slight Chance Thunderstorms

Today 11 May Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny. Highs 70 to 80. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 11 May Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 43 to 53. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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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

    52.9 °F

  • Highest 9 May, 2026

    77 °F

Climate (2021–Present)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    66.1 °F
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