Upper Tumalo Reservoir Weather Forecast

    • 50
    • 79

    Increasing Clouds

    • 46
    • 88

    Increasing Clouds

    • 39
    • 61

    Rain Showers Likely

    • 41
    • 70

    Mostly Sunny

    • 37
    • 67

    Partly Sunny

    • 34
    • 59

    Partly Sunny

    • 38
    • 64

    Mostly Sunny

Today 11 May East Slopes of the Oregon Cascades

Sunny. Highs in the upper 60s to upper 70s, except in the upper 70s to lower 80s Valleys.

Tonight 11 May East Slopes of the Oregon Cascades

Partly cloudy. Lows in the mid to upper 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Tumalo Reservoir Temperature Statistics

May Temperature

Bend Airport AWOS (11.2 miles)

  • Lowest 9 May, 2026

    37.4 °F

  • Average May

    64.2 °F

  • Highest 4 May, 2026

    82.4 °F

Climate (2021–Present)

Bend Airport AWOS (11.2 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    64.7 °F
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