Koosharem Reservoir Weather Forecast

    • 52
    • 82

    Chance Thunderstorms

    • 52
    • 84

    Mostly Sunny

    • 51
    • 84

    Slight Chance Thunderstorms

    • 52
    • 85

    Slight Chance Thunderstorms

    • 52
    • 86

    Mostly Sunny

    • 54
    • 87

    Mostly Sunny

Today 21 Jul Upper Sevier River Valleys

Partly sunny. A slight chance of Showers and Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs around 80. Chance of precipitation 50 percent.

Tonight 21 Jul Upper Sevier River Valleys

A 10 percent chance of Showers and Thunderstorms in the evening. Mostly clear. Lows in the mid 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Koosharem Reservoir Temperature Statistics

July Temperature

Bryce Canyon Airport (64 miles)

  • Lowest 4 July, 2025

    36.6 °F

  • Average July

    64.4 °F

  • Highest 13 July, 2025

    90.6 °F

Climate (2020–Present)

Bryce Canyon Airport (64 miles)

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  • Average Low 2020–2025

    28.5 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    58.4 °F
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