Jamestown Weather Forecast

    • 53
    • 71

    Chance Thunderstorms

    • 58
    • 78

    Increasing Clouds

    • 57
    • 80

    Chance Thunderstorms

    • 55
    • 73

    Rain Showers Likely

    • 58
    • 76

    Chance Thunderstorms

    • 59
    • 79

    Slight Chance Thunderstorms

    • 59
    • 79

    Rain Showers Likely

Today 16 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy with a 30 percent chance of Thunderstorms. Highs 70 to 78.

Tonight 16 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Slight chance of Thunderstorms early in the evening. Lows 46 to 56. Chance of precipitation 10 percent.

Graph Plots Open in Graphs

  • 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

    77.2 °F

  • Highest 2 August, 2026

    104 °F

Climate (2021–2026)

Boulder Municipal Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    66.3 °F
Get WillyWeather+ to remove ads