Jamestown Weather Forecast

    • 61
    • 81

    Thunderstorms Likely

    • 60
    • 78

    Thunderstorms Likely

    • 60
    • 79

    Thunderstorms Likely

    • 61
    • 81

    Chance Thunderstorms

    • 60
    • 82

    Chance Thunderstorms

    • 60
    • 82

    Mostly Sunny

Today 27 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Slight chance of Showers in the Morning, then Showers likely and chance of Thunderstorms in the afternoon. Highs 77 to 87. Chance of rain 60 percent.

Tonight 27 Jul Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly cloudy. Chance of Thunderstorms in the evening. Lows 54 to 64. Chance of precipitation 40 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

    78.3 °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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