Williams Lake Weather Forecast

    • 59
    • 87

    Increasing Clouds

    • 65
    • 95

    Mostly Cloudy

    • 53
    • 86

    Windy

    • 54
    • 84

    Sunny

    • 57
    • 87

    Mostly Sunny

    • 60
    • 90

    Mostly Sunny

Today 14 Jun Upper Columbia Basin

Sunny. Highs in the mid to upper 80s. Northeast wind 5 to 15 Mph with Gusts up to 20 Mph.

Tonight 14 Jun Upper Columbia Basin

Mostly clear. Lows in the mid 50s to lower 60s. Northeast wind 5 to 10 Mph in the Evening, becoming light and variable.

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Williams Lake Temperature Statistics

June Temperature

Ephrata, Ephrata Municipal Airport (15.5 miles)

  • Lowest 6 June, 2026

    41.6 °F

  • Average June

    63 °F

  • Highest 12 June, 2026

    82 °F

Climate (2021–Present)

Ephrata, Ephrata Municipal Airport (15.5 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    64 °F
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