Jamestown Weather Forecast

    • 61
    • 86

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

    • 59
    • 80

    Chance Thunderstorms

    • 61
    • 81

    Chance Thunderstorms

    • 60
    • 81

    Chance Thunderstorms

Today 13 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny. Highs 83 to 93. East Winds 10 to 15 Mph with Gusts up to 20 Mph.

Tonight 13 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 53 to 63. 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

    75.5 °F

  • Highest 5 July, 2026

    96.8 °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

    66.2 °F
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