Sunnyside Wildlife Recreation Area Weather Forecast

    • 43
    • 53

    Mostly Cloudy

    • 43
    • 62

    Rain Likely

    • 41
    • 58

    Rain

    • 36
    • 51

    Rain Likely

    • 35
    • 47

    Rain

    • 34
    • 50

    Chance Rain/Snow

Today 14 Dec Yakima Valley

Mostly cloudy. Highs in the lower 50s. Light Wind, becoming southwest 5 to 10 Mph in the afternoon.

Tonight 14 Dec Yakima Valley

Mostly cloudy. A 20 percent chance of rain overnight. Lows in the lower 40s. Light wind.

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Sunnyside Wildlife Recreation Area Temperature Statistics

December Temperature

Sunnyside Municipal Airport (9.3 miles)

  • Lowest 10 December, 2025

    40.6 °F

  • Average December

    56.5 °F

  • Highest 10 December, 2025

    68 °F

Climate (2020–Present)

Sunnyside Municipal Airport (9.3 miles)

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  • Average Low 2020–2025

    38.9 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    63.5 °F
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