Jamestown Weather Forecast

    • 60
    • 76

    Thunderstorms Likely

    • 63
    • 80

    Chance Thunderstorms

    • 64
    • 83

    Chance Thunderstorms

    • 64
    • 85

    Rain Showers Likely

    • 62
    • 83

    Thunderstorms Likely

    • 60
    • 79

    Rain Showers

Today 23 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Slight chance of Thunderstorms in the Morning, then Thunderstorms likely in the afternoon. Highs 72 to 82. Chance of rain 70 percent.

Tonight 23 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy with a chance of Thunderstorms in the Evening, then mostly clear after midnight. Lows 52 to 62. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jamestown Temperature Statistics

July Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 1 July, 2026

    55.4 °F

  • Average July

    78.4 °F

  • Highest 20 July, 2026

    100.4 °F

Climate (2021–2026)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    66.3 °F
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