Wanapum Recreation Area Weather Forecast

    • 54
    • 76

    Decreasing Clouds

    • 56
    • 81

    Partly Sunny

    • 54
    • 83

    Breezy

    • 55
    • 80

    Mostly Cloudy

    • 48
    • 72

    Slight Chance Rain Showers

    • 50
    • 68

    Partly Sunny

    • 52
    • 71

    Partly Sunny

Today 21 May Kittitas Valley

Partly cloudy. Highs in the lower to mid 70s. East wind 5 to 10 Mph.

Tonight 21 May Kittitas Valley

Partly cloudy. Lows in the upper 40s to lower 50s. Southeast wind 5 to 10 Mph shifting to the northwest overnight.

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Wanapum Recreation Area Temperature Statistics

May Temperature

Ellensburg, Ellensburg Bowers Field (26.1 miles)

  • Lowest 1 May, 2026

    35.7 °F

  • Average May

    58.4 °F

  • Highest 4 May, 2026

    85.6 °F

Climate (2021–Present)

Ellensburg, Ellensburg Bowers Field (26.1 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    62.7 °F
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