Ahtanum Weather Forecast

    • 46
    • 69

    Decreasing Clouds

    • 54
    • 85

    Mostly Sunny

    • 53
    • 91

    Rain Showers Likely

    • 44
    • 76

    Slight Chance Thunderstorms

    • 41
    • 72

    Mostly Sunny

    • 44
    • 74

    Mostly Sunny

    • 50
    • 79

    Mostly Sunny

Today 26 May Yakima Valley

Mostly cloudy. Highs in the mid 60s to lower 70s. North wind 5 to 10 Mph with Gusts to around 20 Mph.

Tonight 26 May Yakima Valley

Mostly cloudy. Lows in the mid 40s to lower 50s. Northwest wind 5 to 10 Mph. Gusts up to 20 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ahtanum Temperature Statistics

May Temperature

Yakima Air Terminal - McAllister Field (3.7 miles)

  • Lowest 16 May, 2026

    34.6 °F

  • Average May

    62 °F

  • Highest 4 May, 2026

    89.7 °F

Climate (2021–Present)

Yakima Air Terminal - McAllister Field (3.7 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    65.4 °F
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