Jamestown Weather Forecast

    • 58
    • 77

    Chance Thunderstorms

    • 59
    • 82

    Slight Chance Thunderstorms

    • 61
    • 82

    Slight Chance Thunderstorms

    • 61
    • 81

    Rain Showers Likely

    • 58
    • 80

    Thunderstorms Likely

    • 56
    • 78

    Rain Showers Likely

Today 19 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Slight chance of Thunderstorms in the afternoon. Highs 74 to 84. Chance of precipitation 20 percent.

Tonight 19 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 50 to 60.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

August Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 5 August, 2026

    50 °F

  • Average August

    76.3 °F

  • Highest 2 August, 2026

    104 °F

Climate (2021–2026)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    66.3 °F
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