McGinnis Lake Weather Forecast

    • 62
    • 75

    Chance Rain Showers

    • 55
    • 74

    Chance Rain Showers

    • 57
    • 76

    Mostly Sunny

    • 58
    • 78

    Partly Sunny

    • 56
    • 81

    Mostly Sunny

    • 56
    • 81

    Sunny

Today 15 Aug Upper Columbia Basin

Mostly cloudy with a chance of rain Showers in the Morning, then partly cloudy in the afternoon. Highs in the lower to mid 80s. South wind 5 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 20 percent.

Tonight 15 Aug Upper Columbia Basin

Mostly cloudy. A chance of Showers overnight. Lows in the upper 50s to mid 60s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an inch.

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McGinnis Lake Temperature Statistics

August Temperature

Omak Airport (41 miles)

  • Lowest 8 August, 2025

    49.6 °F

  • Average August

    75.5 °F

  • Highest 10 August, 2025

    98.7 °F

Climate (2020–Present)

Omak Airport (41 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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