Umatilla National Forest Weather Forecast

    • 39
    • 49

    Chance Rain Showers

    • 41
    • 55

    Chance Rain Showers

    • 39
    • 59

    Mostly Sunny

    • 39
    • 60

    Mostly Sunny

    • 43
    • 63

    Mostly Cloudy

    • 44
    • 64

    Mostly Sunny

    • 49
    • 71

    Sunny

Today 28 Jun Southern Blue Mountains of Oregon

Mostly cloudy with a 50 percent chance of rain Showers. Highs in the mid 50s to lower 60s.

Tonight 28 Jun Southern Blue Mountains of Oregon

Mostly cloudy. Lows in the upper 30s to mid 40s. West wind 5 to 15 Mph with Gusts to around 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Umatilla National Forest Temperature Statistics

June Temperature

Grant County Regional Airport (35.4 miles)

  • Lowest 1 June, 2026

    37.6 °F

  • Average June

    63.9 °F

  • Highest 19 June, 2026

    90.9 °F

Climate (2021–2026)

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

    62.2 °F
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