Jamestown Weather Forecast

    • 54
    • 76

    Patchy Smoke

    • 58
    • 86

    Patchy Smoke

    • 61
    • 86

    Mostly Sunny

    • 62
    • 86

    Partly Sunny

    • 63
    • 86

    Slight Chance Thunderstorms

    • 61
    • 83

    Chance Thunderstorms

Today 5 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Patchy smoke in the morning. Mostly sunny. Highs 75 to 83.

Tonight 5 Aug Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Patchy smoke after midnight. Lows 46 to 56.

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Jamestown Temperature Statistics

August Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 2 August, 2026

    59 °F

  • Average August

    82.8 °F

  • Highest 2 August, 2026

    104 °F

Climate (2021–2026)

Boulder Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    66.3 °F
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