Jamestown Weather Forecast

    • 41
    • 58

    Decreasing Clouds

    • 46
    • 62

    Mostly Sunny

    • 49
    • 64

    Mostly Cloudy

    • 51
    • 63

    Chance Rain Showers

    • 41
    • 62

    Chance Rain/Snow

    • 36
    • 49

    Chance Rain/Snow

    • 39
    • 53

    Mostly Sunny

Today 19 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny. Highs 56 to 64.

Tonight 19 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Slight chance of rain Showers early in the evening. Lows 35 to 45. 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

    63 °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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