Coulee Dam Weather Forecast

    • 66
    • 97

    Hot

    • 67
    • 100

    Hot

    • 61
    • 97

    Hot

    • 61
    • 89

    Mostly Sunny

    • 62
    • 92

    Mostly Sunny

    • 63
    • 92

    Mostly Sunny

Today 30 Jun Upper Columbia Basin

Sunny. Highs in the 90s. North wind 5 to 10 Mph.

Tonight 30 Jun Upper Columbia Basin

Mostly clear. Lows in the lower to mid 60s. Northwest wind 5 to 10 Mph.

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Coulee Dam Temperature Statistics

June Temperature

Omak Airport (42.3 miles)

  • Lowest 2 June, 2025

    40.6 °F

  • Average June

    68.2 °F

  • Highest 9 June, 2025

    100.7 °F

Climate (2020–Present)

Omak Airport (42.3 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    51.6 °F

  • Average High 2020–2025

    62.6 °F
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