Jamestown Weather Forecast

    • 49
    • 69

    Decreasing Clouds

    • 45
    • 68

    Mostly Sunny

    • 43
    • 58

    Rain Showers

    • 38
    • 47

    Rain Showers

    • 35
    • 51

    Chance Snow Showers

    • 35
    • 49

    Mostly Sunny

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

Mostly cloudy. Slight chance of Showers late in the afternoon. Highs 64 to 74. South Winds 10 to 15 Mph with Gusts up to 20 Mph in the afternoon. Chance of rain 20 percent.

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

Mostly cloudy with a slight chance of Showers in the Evening, then mostly clear after midnight. Lows 43 to 53. Chance of rain 20 percent.

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Jamestown Temperature Statistics

October Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 2 October, 2026

    46.4 °F

  • Average October

    68.3 °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

    66.4 °F
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