Jamestown Weather Forecast

    • 50
    • 63

    Chance Rain Showers

    • 42
    • 65

    Decreasing Clouds

    • 36
    • 47

    Chance Rain/Snow

    • 37
    • 48

    Chance Rain Showers

    • 35
    • 46

    Chance Rain Showers

    • 37
    • 52

    Partly Sunny

    • 36
    • 53

    Partly Sunny

Today 22 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy with a 30 percent chance of Showers. Highs 60 to 66.

Tonight 22 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Cloudy. Chance of Showers in the Evening, then a slight chance of Showers after midnight. Lows 43 to 53. Chance of rain 40 percent.

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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

    62.2 °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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