Altonah Weather Forecast

    • 52
    • 78

    Mostly Sunny

    • 55
    • 80

    Chance Rain Showers

    • 47
    • 78

    Mostly Sunny

    • 47
    • 72

    Slight Chance Thunderstorms

    • 47
    • 71

    Slight Chance Thunderstorms

    • 47
    • 71

    Slight Chance Thunderstorms

Today 11 Sep Western Uinta Basin

Partly sunny in the morning then clearing. Highs in the mid 80s. West Winds 10 to 20 Mph in the afternoon.

Tonight 11 Sep Western Uinta Basin

Mostly clear. Lows in the mid 50s. West Winds 10 to 20 Mph.

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  • Temperature Real-Time

Altonah Temperature Statistics

September Temperature

Vernal Airport (41 miles)

  • Lowest 3 September, 2026

    50 °F

  • Average September

    67.2 °F

  • Highest 4 September, 2026

    84.9 °F

Climate (2021–2026)

Vernal Airport (41 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    62.5 °F
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