Umatilla National Forest Weather Forecast

    • 37
    • 45

    Mostly Cloudy

    • 36
    • 47

    Mostly Cloudy

    • 30
    • 43

    Mostly Cloudy

    • 32
    • 40

    Partly Sunny

    • 35
    • 47

    Partly Sunny

    • 35
    • 51

    Partly Sunny

Today 30 Jan Southern Blue Mountains of Oregon

Mostly cloudy. Highs in the upper 40s to mid 50s. Gusts up to 20 Mph in the morning.

Tonight 30 Jan Southern Blue Mountains of Oregon

Mostly cloudy. Lows in the 30s.

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Umatilla National Forest Temperature Statistics

January Temperature

Grant County Regional Airport (35.4 miles)

  • Lowest 25 January, 2026

    16 °F

  • Average January

    33.9 °F

  • Highest 13 January, 2026

    55.2 °F

Climate (2021–Present)

Grant County Regional Airport (35.4 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    62.1 °F
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