Koosharem Reservoir Recreation Site Weather Forecast

    • 54
    • 86

    Smoke

    • 56
    • 85

    Patchy Smoke

    • 57
    • 87

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 56
    • 86

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

Today 4 Aug Central Mountains

Sunny in the morning then becoming partly sunny. Patchy smoke in the afternoon. Highs around 80.

Tonight 4 Aug Central Mountains

Mostly cloudy. Patchy smoke. Lows in the lower 50s.

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  • Temperature Real-Time

Koosharem Reservoir Recreation Site Temperature Statistics

August Temperature

Delta, Delta Municipal Airport (62.1 miles)

  • Lowest 1 August, 2025

    60.8 °F

  • Average August

    79.3 °F

  • Highest 1 August, 2025

    95 °F

Climate (2020–Present)

Delta, Delta Municipal Airport (62.1 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    53.2 °F

  • Average High 2020–2025

    66.5 °F
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