Whitman National Forest Weather Forecast

    • 33
    • 44

    Rain Showers Likely

    • 35
    • 54

    Mostly Sunny

    • 34
    • 57

    Partly Sunny

    • 37
    • 55

    Mostly Sunny

    • 42
    • 64

    Mostly Sunny

    • 45
    • 67

    Mostly Sunny

Today 13 Sep Southern Blue Mountains of Oregon

Mostly cloudy. A chance of rain and high mountain snow Showers in the Morning, then a chance of rain Showers in the afternoon. Highs in the 50s. Southwest wind 5 to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 50 percent.

Tonight 13 Sep Southern Blue Mountains of Oregon

Mostly cloudy. A chance of rain Showers. Lows in the mid 30s to lower 40s. West wind 5 to 15 Mph with Gusts to around 25 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an inch.

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Whitman National Forest Temperature Statistics

September Temperature

La Grande/Union County Airport (17.4 miles)

  • Lowest 4 September, 2026

    39 °F

  • Average September

    59 °F

  • Highest 10 September, 2026

    89.1 °F

Climate (2021–2026)

La Grande/Union County Airport (17.4 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.7 °F
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