Umatilla National Forest Weather Forecast

    • 43
    • 53

    Increasing Clouds

    • 45
    • 56

    Decreasing Clouds

    • 46
    • 61

    Partly Sunny

    • 47
    • 63

    Mostly Cloudy

    • 43
    • 62

    Chance Rain

    • 32
    • 48

    Slight Chance Rain/Snow

    • 32
    • 48

    Mostly Cloudy

Today 16 Mar Southern Blue Mountains of Oregon

Mostly cloudy. A chance of rain. Highs in the upper 50s to mid 60s. Gusts up to 20 Mph in the afternoon. Chance of precipitation 40 percent.

Tonight 16 Mar Southern Blue Mountains of Oregon

Mostly clear. Lows in the upper 30s to mid 40s.

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Umatilla National Forest Temperature Statistics

March Temperature

Grant County Regional Airport (35.4 miles)

  • Lowest 10 March, 2026

    26.6 °F

  • Average March

    42.6 °F

  • Highest 7 March, 2026

    62.1 °F

Climate (2021–Present)

Grant County Regional Airport (35.4 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.3 °F
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