Jamestown Weather Forecast

    • 44
    • 63

    Chance Thunderstorms

    • 45
    • 68

    Mostly Sunny

    • 48
    • 67

    Chance Thunderstorms

    • 50
    • 72

    Chance Thunderstorms

    • 50
    • 72

    Chance Thunderstorms

    • 52
    • 74

    Chance Thunderstorms

Today 30 May Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy in the Morning, then mostly cloudy with a chance of Showers and slight chance of Thunderstorms early in the afternoon. Mostly cloudy with a chance of Thunderstorms late in the afternoon. Highs 59 to 69. West Winds 10 to 15 Mph in the Morning, becoming light. Chance of rain 30 percent.

Tonight 30 May Larimer and Boulder Counties Between 6000 and 9000 Feet

Partly cloudy. Lows 38 to 48. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

May Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 1 May, 2026

    32 °F

  • Average May

    58.4 °F

  • Highest 11 May, 2026

    87.8 °F

Climate (2021–Present)

Boulder Municipal Airport (9.9 miles)

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

  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    66.2 °F
Get WillyWeather+ to remove ads