Jamestown Weather Forecast

    • 53
    • 73

    Severe Tstms

    • 54
    • 76

    Severe Tstms

    • 52
    • 69

    Chance Thunderstorms

    • 56
    • 78

    Chance Thunderstorms

    • 55
    • 81

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

Today 23 Jun Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Chance of Showers and slight chance of Thunderstorms in the afternoon. Some Thunderstorms may be severe with damaging Winds and large hail. Highs 71 to 79. East Winds 10 to 15 Mph with Gusts up to 20 Mph in the afternoon. Chance of rain 30 percent.

Tonight 23 Jun Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Areas of smoke. Lows 47 to 57.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

June Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 14 June, 2026

    48.2 °F

  • Average June

    70.7 °F

  • Highest 6 June, 2026

    95 °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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