Umatilla National Forest Weather Forecast

    • 55
    • 75

    Patchy Smoke

    • 56
    • 76

    Patchy Smoke

    • 54
    • 75

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

    • 58
    • 79

    Partly Sunny

    • 56
    • 78

    Slight Chance Rain Showers

Today 16 Aug Southern Blue Mountains of Oregon

Mostly cloudy in the morning then clearing. Patchy smoke. Highs in the upper 70s to mid 80s.

Tonight 16 Aug Southern Blue Mountains of Oregon

Partly cloudy. Patchy smoke. Lows in the 50s.

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Umatilla National Forest Temperature Statistics

August Temperature

Grant County Regional Airport (35.4 miles)

  • Lowest 3 August, 2026

    44.2 °F

  • Average August

    72 °F

  • Highest 7 August, 2026

    99.5 °F

Climate (2021–2026)

Grant County Regional Airport (35.4 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    50.2 °F

  • Average High 2021–2026

    62 °F
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