Upper Tumalo Reservoir Weather Forecast

    • 36
    • 77

    Chance Rain Showers

    • 40
    • 57

    Rain Showers Likely

    • 47
    • 72

    Chance Rain Showers

    • 46
    • 77

    Rain Showers Likely

    • 38
    • 64

    Partly Sunny

    • 37
    • 66

    Mostly Sunny

    • 41
    • 69

    Mostly Sunny

Today 25 May East Slopes of the Oregon Cascades

Partly cloudy. Highs in the lower 60s to lower 70s, except in the upper 60s to mid 70s Valleys. Breezy. Southwest wind 10 to 20 Mph with Gusts to around 45 Mph.

Tonight 25 May East Slopes of the Oregon Cascades

Mostly cloudy. A chance of rain and high mountain snow Showers. Lows in the lower to mid 30s. West wind 5 to 15 Mph in the Evening, becoming light. Gusts up to 35 Mph. Chance of precipitation 50 percent.

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Upper Tumalo Reservoir Temperature Statistics

May Temperature

Bend Airport AWOS (11.2 miles)

  • Lowest 14 May, 2026

    32 °F

  • Average May

    60 °F

  • Highest 12 May, 2026

    89.6 °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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