Diamond Lake Weather Forecast

    • 32
    • 44

    Increasing Clouds

    • 37
    • 48

    Partly Sunny

    • 40
    • 51

    Mostly Sunny

    • 41
    • 51

    Mostly Sunny

    • 42
    • 58

    Partly Sunny

    • 37
    • 48

    Partly Sunny

Today 12 Oct Upper Slopes of the Eastern Washington Cascades Crest

Sunny. Widespread frost in the morning. Highs in the upper 40s to mid 50s.

Tonight 12 Oct Upper Slopes of the Eastern Washington Cascades Crest

Mostly clear. Lows in the lower to mid 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Lake Temperature Statistics

October Temperature

Yakima Air Terminal - McAllister Field (35.4 miles)

  • Lowest 9 October, 2026

    41 °F

  • Average October

    61.2 °F

  • Highest 5 October, 2026

    84.7 °F

Climate (2021–2026)

Yakima Air Terminal - McAllister Field (35.4 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    65.4 °F
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