Jamestown Weather Forecast

    • 56
    • 79

    Chance Thunderstorms

    • 55
    • 77

    Rain Showers Likely

    • 56
    • 77

    Chance Thunderstorms

    • 60
    • 82

    Mostly Sunny

    • 60
    • 85

    Mostly Sunny

    • 62
    • 87

    Mostly Sunny

Today 8 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy early in the Morning, then a slight chance of Showers late in the morning. Mostly cloudy with a chance of Thunderstorms in the afternoon. Highs 75 to 85. Chance of rain 50 percent.

Tonight 8 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy with a chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows 49 to 59. Chance of precipitation 40 percent.

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Jamestown Temperature Statistics

July Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 1 July, 2026

    55.4 °F

  • Average July

    75.8 °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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