Jamestown Weather Forecast

    • 55
    • 84

    Chance Thunderstorms

    • 53
    • 80

    Chance Thunderstorms

    • 56
    • 81

    Chance Thunderstorms

    • 59
    • 82

    Mostly Sunny

    • 62
    • 86

    Mostly Sunny

    • 56
    • 85

    Slight Chance Thunderstorms

    • 52
    • 73

    Chance Thunderstorms

Today 5 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny in the Morning, then mostly cloudy with a chance of Thunderstorms in the afternoon. Highs 74 to 84. Chance of precipitation 30 percent.

Tonight 5 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Slight chance of Thunderstorms early in the evening. Lows 48 to 58. Chance of precipitation 20 percent.

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Jamestown Temperature Statistics

July Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 2 July, 2025

    57.2 °F

  • Average July

    76.6 °F

  • Highest 2 July, 2025

    95 °F

Climate (2020–Present)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    64.9 °F
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