Grand Coulee Dam Airport Weather Forecast

    • 36
    • 61

    Sunny

    • 40
    • 66

    Partly Sunny

    • 37
    • 61

    Mostly Sunny

    • 43
    • 65

    Mostly Sunny

    • 47
    • 71

    Mostly Cloudy

    • 44
    • 68

    Partly Sunny

    • 47
    • 66

    Mostly Cloudy

Today 19 Apr Upper Columbia Basin

Sunny. Highs in the mid 50s to mid 60s. Windy. Northeast wind 15 to 25 Mph with Gusts up to 35 Mph.

Tonight 19 Apr Upper Columbia Basin

Clear. Lows in the 30s. Windy. Northeast wind 15 to 25 Mph with Gusts up to 35 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 14 April, 2024

    78.7 °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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