Jamestown Weather Forecast

    • 27
    • 44

    Mostly Sunny

    • 36
    • 50

    Sunny

    • 43
    • 69

    Mostly Sunny

    • 41
    • 66

    Partly Sunny

    • 44
    • 62

    Mostly Sunny

    • 47
    • 65

    Partly Sunny

Today 15 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy with a 40 percent chance of rain Showers. Highs 59 to 69.

Tonight 15 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 19 to 29.

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Jamestown Temperature Statistics

October Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 2 October, 2026

    46.4 °F

  • Average October

    67.5 °F

  • Highest 5 October, 2026

    91.4 °F

Climate (2021–2026)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    66.5 °F
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