Jamestown Weather Forecast

    • 50
    • 77

    Mostly Sunny

    • 54
    • 76

    Chance Thunderstorms

    • 52
    • 73

    Chance Thunderstorms

    • 52
    • 74

    Chance Thunderstorms

    • 53
    • 75

    Chance Thunderstorms

    • 56
    • 79

    Chance Thunderstorms

Today 21 Jun Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly sunny. Highs 73 to 83. West Winds 10 to 20 Mph with Gusts up to 35 Mph.

Tonight 21 Jun Larimer and Boulder Counties Between 6000 and 9000 Feet

Mostly clear. Lows 47 to 57.

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Jamestown Temperature Statistics

June Temperature

Boulder Municipal Airport (9.9 miles)

  • Lowest 14 June, 2026

    48.2 °F

  • Average June

    70.8 °F

  • Highest 6 June, 2026

    95 °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

    66.2 °F
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