Umatilla National Forest Weather Forecast

    • 58
    • 82

    Slight Chance Thunderstorms

    • 57
    • 85

    Patchy Smoke

    • 50
    • 80

    Sunny

    • 51
    • 76

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

Today 23 Jul Southern Blue Mountains of Oregon

Sunny. Patchy smoke through the day. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the upper 80s to lower 90s. Gusts up to 20 Mph in the afternoon.

Tonight 23 Jul Southern Blue Mountains of Oregon

Mostly clear. Patchy smoke through the night. Lows in the mid 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

    72.4 °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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