Upper Tumalo Reservoir Weather Forecast

    • 37
    • 59

    Rain Likely

    • 30
    • 49

    Rain Likely

    • 32
    • 57

    Mostly Sunny

    • 32
    • 58

    Mostly Sunny

    • 32
    • 55

    Mostly Sunny

    • 34
    • 56

    Partly Sunny

    • 35
    • 57

    Partly Sunny

Today 21 Apr East Slopes of the Oregon Cascades

Rain likely. Highs in the mid 40s to mid 50s, except in the 50s Valleys. Chance of precipitation 70 percent. Rainfall Amounts less than a quarter of an inch.

Tonight 21 Apr East Slopes of the Oregon Cascades

Cloudy. Rain and high mountain snow likely in the Evening, then a chance of rain and high mountain snow overnight. High mountain snow accumulation up to 1 inch. Lows in the upper 20s to upper 30s. West wind 5 to 15 Mph with Gusts to around 40 Mph overnight. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Tumalo Reservoir Temperature Statistics

April Temperature

Bend Airport AWOS (11.2 miles)

  • Lowest 17 April, 2026

    19.4 °F

  • Average April

    49.6 °F

  • Highest 5 April, 2026

    77 °F

Climate (2021–Present)

Bend Airport AWOS (11.2 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    64.7 °F
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