Jamestown Weather Forecast

    • 57
    • 81

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 60
    • 80

    Mostly Sunny

    • 61
    • 83

    Mostly Sunny

    • 63
    • 85

    Chance Thunderstorms

    • 59
    • 79

    Thunderstorms Likely

    • 58
    • 73

    Rain Showers

Today 15 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny. Highs 79 to 89. East Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 50 to 60. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light.

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Jamestown Temperature Statistics

July Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 1 July, 2026

    55.4 °F

  • Average July

    76.4 °F

  • Highest 13 July, 2026

    98.6 °F

Climate (2021–2026)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    66.3 °F
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