Jamestown Weather Forecast

    • 40
    • 64

    Mostly Cloudy

    • 41
    • 57

    Partly Sunny

    • 43
    • 64

    Mostly Sunny

    • 48
    • 63

    Partly Sunny

    • 48
    • 63

    Chance Rain Showers

    • 38
    • 59

    Chance Rain Showers

    • 34
    • 50

    Chance Rain Showers

Today 18 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Highs 53 to 61.

Tonight 18 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy in the Evening, then becoming partly cloudy. Lows 35 to 43.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

October Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 16 October, 2026

    35.6 °F

  • Average October

    63.5 °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

    41.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    66.5 °F
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