Jamestown Weather Forecast

    • 52
    • 71

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 51
    • 73

    Partly Sunny

    • 50
    • 71

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

Today 4 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny. Highs 69 to 77.

Tonight 4 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 45 to 55.

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Jamestown Temperature Statistics

October Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 1 October, 2026

    51.8 °F

  • Average October

    61.9 °F

  • Highest 1 October, 2026

    73.4 °F

Climate (2021–2026)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    66.4 °F
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