Shaw Reservoir Weather Forecast

    • 42
    • 66

    Decreasing Clouds

    • 43
    • 74

    Increasing Clouds

    • 43
    • 72

    Rain Showers Likely

    • 42
    • 72

    Chance Rain Showers

    • 45
    • 75

    Mostly Sunny

    • 46
    • 78

    Mostly Sunny

    • 44
    • 78

    Partly Sunny

Today 15 Sep Southern Blue Mountains of Oregon

Partly cloudy. Highs in the lower 60s to lower 70s.

Tonight 15 Sep Southern Blue Mountains of Oregon

Mostly cloudy. A 20 percent chance of rain Showers overnight. Lows in the upper 30s to mid 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shaw Reservoir Temperature Statistics

September Temperature

La Grande/Union County Airport (13.7 miles)

  • Lowest 4 September, 2026

    39 °F

  • Average September

    58.5 °F

  • Highest 10 September, 2026

    89.1 °F

Climate (2021–2026)

La Grande/Union County Airport (13.7 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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