Jamestown Weather Forecast

    • 48
    • 63

    Mostly Cloudy

    • 50
    • 65

    Chance Rain Showers

    • 43
    • 66

    Partly Sunny

    • 37
    • 47

    Rain/Snow

    • 35
    • 45

    Chance Rain/Snow

    • 34
    • 49

    Slight Chance Rain Showers

    • 35
    • 55

    Partly Sunny

Today 21 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy. Highs 61 to 69.

Tonight 21 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy. Slight chance of Showers early in the evening. Lows 41 to 51. Chance of rain 10 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

    62.4 °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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