Grant Lake Weather Forecast

    • 62
    • 82

    Mostly Sunny

    • 60
    • 86

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 57
    • 77

    Partly Sunny

    • 60
    • 79

    Mostly Sunny

    • 64
    • 85

    Mostly Sunny

    • 67
    • 90

    Mostly Sunny

Today 23 Jul Okanogan Valley

Sunny. Highs in the lower 80s to lower 90s. South wind 5 to 15 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 23 Jul Okanogan Valley

Mostly clear. Lows in the upper 50s to mid 60s.

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  • Temperature Real-Time

Grant Lake Temperature Statistics

July Temperature

Omak Airport (25.5 miles)

  • Lowest 11 July, 2025

    52.6 °F

  • Average July

    76 °F

  • Highest 13 July, 2025

    103.6 °F

Climate (2020–Present)

Omak Airport (25.5 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    62.7 °F
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