Ginkgo Petrified Forest State Park Weather Forecast

    • 36
    • 49

    Chance Rain

    • 33
    • 46

    Rain

    • 29
    • 45

    Slight Chance Rain/Snow

    • 29
    • 44

    Chance Rain/Snow

    • 29
    • 41

    Chance Rain/Snow

    • 29
    • 43

    Chance Rain

    • 29
    • 41

    Chance Rain/Snow

Today 17 Dec Kittitas Valley

Sunny with a 50 percent chance of rain or snow. Highs in the 40s. Very windy. West wind 20 to 35 Mph. Gusts up to 60 Mph decreasing to 45 Mph in the afternoon.

Tonight 17 Dec Kittitas Valley

Mostly cloudy. A 20 percent chance of rain or snow overnight. Lows in the lower to mid 30s. Southwest wind 5 to 15 Mph. Gusts up to 30 Mph in the evening.

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Ginkgo Petrified Forest State Park Temperature Statistics

December Temperature

Ellensburg, Ellensburg Bowers Field (24.9 miles)

  • Lowest 3 December, 2025

    24.1 °F

  • Average December

    40.9 °F

  • Highest 10 December, 2025

    63 °F

Climate (2020–Present)

Ellensburg, Ellensburg Bowers Field (24.9 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    62.8 °F
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