Umatilla National Forest Weather Forecast

    • 54
    • 77

    Increasing Clouds

    • 43
    • 68

    Partly Sunny

    • 45
    • 67

    Sunny

    • 49
    • 72

    Sunny

    • 54
    • 79

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

Today 19 Jun Southern Blue Mountains of Oregon

Sunny. Highs in the 80s.

Tonight 19 Jun Southern Blue Mountains of Oregon

Mostly cloudy. Lows in the 50s.

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Umatilla National Forest Temperature Statistics

June Temperature

Grant County Regional Airport (35.4 miles)

  • Lowest 1 June, 2026

    37.6 °F

  • Average June

    61.3 °F

  • Highest 16 June, 2026

    90.3 °F

Climate (2021–2026)

Grant County Regional Airport (35.4 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.2 °F
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