Coulee Dam Weather Forecast

    • 53
    • 72

    Rain Showers Likely

    • 58
    • 81

    Mostly Cloudy

    • 56
    • 78

    Chance Rain Showers

    • 54
    • 77

    Slight Chance Rain Showers

    • 53
    • 77

    Partly Sunny

    • 54
    • 78

    Mostly Cloudy

Today 27 Jun Upper Columbia Basin

Mostly cloudy. A chance of rain Showers in the afternoon. Highs in the upper 60s to mid 70s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 50 percent.

Tonight 27 Jun Upper Columbia Basin

Mostly cloudy. Lows in the upper 40s to lower 50s. West wind 5 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coulee Dam Temperature Statistics

June Temperature

Omak Airport (42.3 miles)

  • Lowest 7 June, 2026

    35.7 °F

  • Average June

    67.4 °F

  • Highest 15 June, 2026

    96.7 °F

Climate (2021–2026)

Omak Airport (42.3 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    63 °F
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