Diamond Lake Weather Forecast

    • 46
    • 62

    Becoming Sunny

    • 52
    • 68

    Mostly Sunny

    • 56
    • 71

    Partly Sunny

    • 53
    • 69

    Chance Rain Showers

    • 50
    • 63

    Sunny

    • 54
    • 69

    Sunny

Today 12 Jul Upper Slopes of the Eastern Washington Cascades Crest

Mostly cloudy in the morning then clearing. Highs in the lower 60s to lower 70s.

Tonight 12 Jul Upper Slopes of the Eastern Washington Cascades Crest

Clear. Lows in the 40s. Gusts up to 20 Mph in the evening.

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  • Temperature Real-Time

Diamond Lake Temperature Statistics

July Temperature

Yakima Air Terminal - McAllister Field (35.4 miles)

  • Lowest 2 July, 2026

    47.6 °F

  • Average July

    71.8 °F

  • Highest 7 July, 2026

    98.7 °F

Climate (2021–2026)

Yakima Air Terminal - McAllister Field (35.4 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    65.3 °F
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