Sun Lakes State Park Weather Forecast

    • 73
    • 99

    Hot

    • 69
    • 100

    Chance Rain Showers

    • 64
    • 94

    Sunny

    • 66
    • 94

    Sunny

    • 70
    • 97

    Hot

    • 75
    • 100

    Hot

    • 73
    • 98

    Hot

Today 15 Jul Upper Columbia Basin

Sunny. Highs in the mid to upper 90s. East wind 5 to 10 Mph.

Tonight 15 Jul Upper Columbia Basin

Haze in the evening. Mostly clear in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms overnight. Lows in the lower 60s to lower 70s. Northeast wind 5 to 10 Mph. Gusts up to 20 Mph overnight. Chance of precipitation 20 percent.

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Sun Lakes State Park Temperature Statistics

July Temperature

Ephrata, Ephrata Municipal Airport (20.5 miles)

  • Lowest 1 July, 2026

    55.7 °F

  • Average July

    75.1 °F

  • Highest 7 July, 2026

    96.7 °F

Climate (2021–2026)

Ephrata, Ephrata Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    63.8 °F
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