Castor Lake Weather Forecast

    • 59
    • 88

    Mostly Sunny

    • 60
    • 90

    Partly Sunny

    • 56
    • 84

    Mostly Sunny

    • 56
    • 82

    Mostly Sunny

    • 55
    • 83

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

Today 6 Jul Okanogan Valley

Sunny. Highs in the mid 80s to mid 90s.

Tonight 6 Jul Okanogan Valley

Partly cloudy. Lows in the upper 50s to lower 60s.

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Castor Lake Temperature Statistics

July Temperature

Omak Airport (5.6 miles)

  • Lowest 2 July, 2026

    55.7 °F

  • Average July

    72 °F

  • Highest 4 July, 2026

    89.1 °F

Climate (2021–2026)

Omak Airport (5.6 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    62.9 °F
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