Stewart Lake Weather Forecast

    • 47
    • 84

    Mostly Sunny

    • 55
    • 86

    Mostly Sunny

    • 53
    • 86

    Slight Chance Thunderstorms

    • 56
    • 87

    Chance Thunderstorms

    • 45
    • 79

    Slight Chance Thunderstorms

    • 46
    • 76

    Mostly Sunny

Today 9 Sep Eastern Uinta Basin

Sunny. Highs in the 70s.

Tonight 9 Sep Eastern Uinta Basin

Mostly clear. Lows 45 to 55.

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Stewart Lake Temperature Statistics

September Temperature

Vernal Airport (9.9 miles)

  • Lowest 3 September, 2026

    50 °F

  • Average September

    67.2 °F

  • Highest 4 September, 2026

    84.9 °F

Climate (2021–2026)

Vernal Airport (9.9 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    62.5 °F
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