Jamestown Weather Forecast

    • 40
    • 54

    Increasing Clouds

    • 41
    • 52

    Mostly Cloudy

    • 34
    • 48

    Chance Rain/Snow

    • 35
    • 52

    Mostly Sunny

    • 33
    • 51

    Partly Sunny

    • 34
    • 50

    Partly Sunny

Today 31 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy in the Morning, then becoming partly cloudy. A 10 percent chance of rain Showers. Highs 49 to 59.

Tonight 31 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy in the Evening, then becoming mostly cloudy. Lows 32 to 42.

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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

    59.7 °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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