Upper Tumalo Reservoir Weather Forecast

    • 43
    • 80

    Mostly Sunny

    • 39
    • 71

    Becoming Sunny

    • 46
    • 77

    Mostly Sunny

    • 49
    • 85

    Mostly Sunny

    • 45
    • 78

    Chance Rain Showers

    • 43
    • 69

    Rain Showers Likely

    • 40
    • 65

    Chance Rain Showers

Today 28 Aug East Slopes of the Oregon Cascades

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

Tonight 28 Aug East Slopes of the Oregon Cascades

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

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  • Temperature Real-Time

Upper Tumalo Reservoir Temperature Statistics

August Temperature

Bend Airport AWOS (11.2 miles)

  • Lowest 3 August, 2026

    42.8 °F

  • Average August

    72 °F

  • Highest 6 August, 2026

    100.4 °F

Climate (2021–2026)

Bend Airport AWOS (11.2 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    64.7 °F
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