Sunnyside Wildlife Recreation Area Weather Forecast

    • 48
    • 77

    Increasing Clouds

    • 52
    • 79

    Sunny

    • 55
    • 86

    Sunny

    • 54
    • 88

    Mostly Sunny

    • 51
    • 79

    Partly Sunny

    • 50
    • 76

    Mostly Sunny

Today 7 Sep Yakima Valley

Partly cloudy in the Morning, becoming sunny. Highs in the 70s. West wind 5 to 10 Mph. Gusts up to 20 Mph in the morning.

Tonight 7 Sep Yakima Valley

Mostly cloudy in the evening then clearing. Lows in the upper 40s to lower 50s. Northwest wind 5 to 10 Mph in the Evening, becoming light.

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Sunnyside Wildlife Recreation Area Temperature Statistics

September Temperature

Sunnyside Municipal Airport (9.3 miles)

  • Lowest 3 September, 2026

    46.2 °F

  • Average September

    62.1 °F

  • Highest 1 September, 2026

    85.5 °F

Climate (2021–2026)

Sunnyside Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    63 °F
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