Jamestown Weather Forecast

    • 44
    • 66

    Sunny

    • 43
    • 64

    Partly Sunny

    • 44
    • 57

    Partly Sunny

    • 44
    • 63

    Partly Sunny

    • 47
    • 61

    Partly Sunny

    • 49
    • 63

    Chance Rain Showers

    • 44
    • 59

    Chance Rain Showers

Today 17 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy with a chance of rain and snow Showers. Highs 47 to 57. Chance of precipitation 40 percent.

Tonight 17 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Clear. Lows 36 to 46. West Winds 10 to 15 Mph after midnight.

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Jamestown Temperature Statistics

October Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 15 October, 2026

    41 °F

  • Average October

    64.7 °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

    41.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    66.5 °F
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