Umatilla National Forest Weather Forecast

    • 61
    • 78

    Increasing Clouds

    • 58
    • 76

    Chance Rain Showers

    • 56
    • 77

    Slight Chance Thunderstorms

    • 54
    • 79

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 58
    • 79

    Partly Sunny

Today 13 Jul Southern Blue Mountains of Oregon

Partly cloudy. Highs in the 80s.

Tonight 13 Jul Southern Blue Mountains of Oregon

Mostly cloudy. Lows in the upper 50s to lower 60s. 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, 2026

    43 °F

  • Average July

    70.6 °F

  • Highest 7 July, 2026

    95.5 °F

Climate (2021–2026)

Grant County Regional Airport (35.4 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    62.1 °F
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