Grand Coulee Dam Airport Weather Forecast

    • 40
    • 65

    Sunny

    • 43
    • 65

    Partly Sunny

    • 41
    • 61

    Partly Sunny

    • 42
    • 56

    Chance Rain

    • 40
    • 58

    Partly Sunny

    • 42
    • 58

    Mostly Cloudy

Today 22 Oct Upper Columbia Basin

Sunny. Highs in the mid to upper 60s. Northeast wind 5 to 10 Mph.

Tonight 22 Oct Upper Columbia Basin

Mostly clear. Lows in the mid 30s to lower 40s. Light Wind, becoming northeast 5 to 10 Mph overnight.

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Grand Coulee Dam Airport Temperature Statistics

October Temperature

Omak, Omak Airport (42.3 miles)

  • Lowest 17 October, 2018

    30.9 °F
  • Average October

    49 °F
  • Highest 2 October, 2018

    72 °F

Climate (2010–Present)

Omak, Omak Airport (42.3 miles)

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  • Average Low 2010–Present

    40.9 °F
  • Average 2010–Present

    51.8 °F
  • Average High 2010–Present

    62.2 °F
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