Jamestown Weather Forecast

    • 57
    • 80

    Chance Thunderstorms

    • 54
    • 75

    Chance Thunderstorms

    • 54
    • 74

    Rain Showers Likely

    • 56
    • 77

    Chance Thunderstorms

    • 58
    • 80

    Slight Chance Thunderstorms

    • 58
    • 80

    Slight Chance Thunderstorms

Today 24 Aug 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 76 to 86. Chance of precipitation 50 percent.

Tonight 24 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Lows 53 to 63. West Winds 10 to 15 Mph with Gusts up to 20 Mph.

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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

    76.6 °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

    66.4 °F
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