Grand Coulee Dam Airport Weather Forecast

    • 36
    • 56

    Partly Cloudy

    • 37
    • 59

    Partly Sunny

    • 36
    • 60

    Mostly Sunny

    • 37
    • 60

    Sunny

    • 41
    • 62

    Partly Sunny

    • 42
    • 65

    Partly Sunny

Today 16 Apr Upper Columbia Basin

Partly cloudy. Highs in the 50s. Breezy. West wind 10 to 20 Mph with Gusts up to 30 Mph.

Tonight 16 Apr Upper Columbia Basin

Mostly clear. Lows in the lower to mid 30s. Northwest wind 5 to 15 Mph with Gusts up to 25 Mph.

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Grand Coulee Dam Airport Temperature Statistics

April Temperature

Omak Airport (42.3 miles)

  • Lowest 7 April, 2024

    29.8 °F

  • Average April

    51.1 °F

  • Highest 2 April, 2024

    77.6 °F

Climate (2019–Present)

Omak Airport (42.3 miles)

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  • Average Low 2019–2024

    40.8 °F

  • Average 2019–2024

    51.6 °F

  • Average High 2019–2024

    62 °F
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