Jamestown Weather Forecast

    • 46
    • 66

    Slight Chance Rain Showers

    • 50
    • 64

    Increasing Clouds

    • 50
    • 63

    Slight Chance Rain Showers

    • 42
    • 65

    Partly Sunny

    • 37
    • 47

    Chance Rain/Snow

    • 37
    • 49

    Slight Chance Rain Showers

    • 35
    • 50

    Slight Chance Rain/Snow

Today 20 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Highs 51 to 59.

Tonight 20 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 38 to 48.

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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

    62.8 °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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