Upper Tumalo Reservoir Weather Forecast

    • 45
    • 66

    Decreasing Clouds

    • 45
    • 68

    Chance Rain Showers

    • 45
    • 74

    Mostly Sunny

    • 47
    • 78

    Mostly Sunny

    • 49
    • 81

    Mostly Sunny

    • 46
    • 78

    Mostly Sunny

Today 16 Sep East Slopes of the Oregon Cascades

Mostly cloudy in the morning then clearing. Highs in the 60s. Northeast wind 5 to 15 Mph with Gusts to around 30 Mph.

Tonight 16 Sep East Slopes of the Oregon Cascades

Mostly clear. Lows in the upper 30s to upper 40s. Northeast wind 5 to 15 Mph in the Evening, becoming light. Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Tumalo Reservoir Temperature Statistics

September Temperature

Bend Airport AWOS (11.2 miles)

  • Lowest 5 September, 2026

    39.2 °F

  • Average September

    57.3 °F

  • Highest 9 September, 2026

    89.6 °F

Climate (2021–2026)

Bend Airport AWOS (11.2 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    64.6 °F
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