Happy Valley Reservoir Weather Forecast

    • 48
    • 82

    Increasing Clouds

    • 46
    • 84

    Mostly Sunny

    • 47
    • 81

    Sunny

    • 48
    • 80

    Sunny

    • 48
    • 81

    Mostly Sunny

    • 40
    • 75

    Partly Sunny

Today 4 Oct North Central Oregon

Sunny. Highs in the upper 70s to lower 80s. Light wind.

Tonight 4 Oct North Central Oregon

Partly cloudy. Lows in the lower to mid 50s. Light wind.

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Happy Valley Reservoir Temperature Statistics

October Temperature

The Dalles Municipal Airport (46 miles)

  • Lowest 2 October, 2026

    48 °F

  • Average October

    64.6 °F

  • Highest 2 October, 2026

    84 °F

Climate (2021–2026)

The Dalles Municipal Airport (46 miles)

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  • Average Low 2021–2026

    46.2 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    66.8 °F
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