Umatilla National Forest Weather Forecast

    • 48
    • 70

    Increasing Clouds

    • 44
    • 59

    Chance Thunderstorms

    • 50
    • 67

    Sunny

    • 54
    • 74

    Sunny

    • 59
    • 81

    Sunny

    • 58
    • 84

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

Today 3 Jul Southern Blue Mountains of Oregon

Sunny. Highs in the mid 70s to lower 80s.

Tonight 3 Jul Southern Blue Mountains of Oregon

Mostly cloudy with a 20 percent chance of rain Showers. Lows in the upper 40s to mid 50s. Gusts up to 20 Mph in the evening.

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Umatilla National Forest Temperature Statistics

July Temperature

Grant County Regional Airport (35.4 miles)

  • Lowest 1 July, 2025

    61.7 °F

  • Average July

    77.3 °F

  • Highest 1 July, 2025

    94.8 °F

Climate (2020–Present)

Grant County Regional Airport (35.4 miles)

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  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    50.4 °F

  • Average High 2020–2025

    62.3 °F
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