Sun Lakes State Park Weather Forecast

    • 43
    • 73

    Slight Chance Rain Showers

    • 42
    • 62

    Chance Rain Showers

    • 41
    • 55

    Rain Showers

    • 37
    • 54

    Partly Sunny

    • 36
    • 60

    Mostly Sunny

    • 38
    • 62

    Mostly Sunny

Today 10 Oct Upper Columbia Basin

Partly sunny with a 20 percent chance of rain Showers. Highs in the lower to mid 70s. South wind 5 to 15 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 10 Oct Upper Columbia Basin

Partly cloudy with a 20 percent chance of rain Showers. Lows in the lower to mid 40s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sun Lakes State Park Temperature Statistics

October Temperature

Ephrata, Ephrata Municipal Airport (20.5 miles)

  • Lowest 6 October, 2025

    37.9 °F

  • Average October

    57.1 °F

  • Highest 4 October, 2025

    72 °F

Climate (2020–Present)

Ephrata, Ephrata Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    63.6 °F
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