Jamestown Weather Forecast

    • 36
    • 50

    Slight Chance Rain Showers

    • 37
    • 58

    Mostly Sunny

    • 36
    • 60

    Mostly Sunny

    • 39
    • 57

    Mostly Cloudy

    • 39
    • 58

    Mostly Cloudy

    • 38
    • 53

    Slight Chance Rain Showers

Today 26 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Patchy fog in the morning. Mostly cloudy with a slight chance of rain and snow Showers in the Morning, then partly cloudy in the afternoon. Highs 48 to 54. Chance of precipitation 20 percent.

Tonight 26 Oct Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Patchy fog after midnight. Lows 30 to 38.

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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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