Flagstaff Weather Forecast

    • 74
    • 100

    Chance Thunderstorms

    • 67
    • 96

    Chance Thunderstorms

    • 65
    • 91

    Thunderstorms Likely

    • 65
    • 91

    Thunderstorms Likely

    • 65
    • 93

    Chance Thunderstorms

    • 65
    • 93

    Slight Chance Thunderstorms

Today 26 Jul Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Slight chance of Thunderstorms late in the afternoon. Highs 99 to 103. Chance of precipitation 20 percent.

Tonight 26 Jul Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows 67 to 73. Chance of rain 20 percent.

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  • Temperature Real-Time

Flagstaff Temperature Statistics

July Temperature

Boulder Municipal Airport (3.7 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 (3.7 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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