Jamestown Weather Forecast

    • 44
    • 71

    Chance Rain Showers

    • 45
    • 54

    Chance Thunderstorms

    • 49
    • 68

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 53
    • 78

    Mostly Sunny

    • 56
    • 81

    Mostly Sunny

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

Partly cloudy. Highs 68 to 74. Northeast Winds 10 to 15 Mph with Gusts up to 20 Mph.

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

Mostly cloudy. Slight chance of Showers early in the evening. Slight chance of Showers after midnight. Lows 37 to 45. East Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light. Chance of rain 20 percent.

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Jamestown Temperature Statistics

June Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 2 June, 2026

    51.8 °F

  • Average June

    71.3 °F

  • Highest 6 June, 2026

    95 °F

Climate (2021–Present)

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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