Fort Simcoe State Park Weather Forecast

    • 39
    • 45

    Mostly Cloudy

    • 40
    • 55

    Mostly Cloudy

    • 36
    • 53

    Partly Sunny

    • 34
    • 52

    Mostly Sunny

    • 31
    • 49

    Mostly Sunny

    • 30
    • 45

    Mostly Sunny

Today 11 Jan Yakima Valley

Mostly cloudy. A 20 percent chance of rain in the morning. Highs in the mid to upper 40s. Light wind.

Tonight 11 Jan Yakima Valley

Mostly cloudy. Lows in the mid 30s. Light wind.

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Fort Simcoe State Park Temperature Statistics

January Temperature

Yakima Air Terminal - McAllister Field (20.5 miles)

  • Lowest 8 January, 2026

    21 °F

  • Average January

    33.7 °F

  • Highest 8 January, 2026

    46.9 °F

Climate (2021–Present)

Yakima Air Terminal - McAllister Field (20.5 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    65.3 °F
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