Dewey Weather Forecast

    • 64
    • 102

    Hot

    • 67
    • 102

    Slight Chance Thunderstorms

    • 69
    • 103

    Slight Chance Thunderstorms

    • 70
    • 103

    Slight Chance Thunderstorms

    • 68
    • 99

    Chance Thunderstorms

    • 66
    • 95

    Rain Showers Likely

Today 19 Aug Arches/Grand Flat

Sunny. Highs around 100.

Tonight 19 Aug Arches/Grand Flat

Mostly clear. Lows in the 60s.

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Dewey Temperature Statistics

August Temperature

Moab, Canyonlands Field (23.6 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    80.7 °F

  • Highest 7 August, 2025

    102.7 °F

Climate (2020–Present)

Moab, Canyonlands Field (23.6 miles)

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  • Average Low 2020–2025

    41.9 °F

  • Average 2020–2025

    55.6 °F

  • Average High 2020–2025

    69.2 °F
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