Jamestown Weather Forecast

    • 65
    • 88

    Chance Rain Showers

    • 63
    • 85

    Chance Thunderstorms

    • 61
    • 83

    Chance Thunderstorms

    • 59
    • 83

    Chance Thunderstorms

    • 55
    • 77

    Rain Showers Likely

    • 52
    • 66

    Rain Showers

Today 8 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Slight chance of Showers early in the Afternoon, then a slight chance of Thunderstorms late in the afternoon. Areas of smoke through the day. Highs 85 to 95. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 8 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy in the Evening, then becoming partly cloudy. Areas of smoke. Lows 57 to 67. West Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light.

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

    75.9 °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