Happy Valley Reservoir Weather Forecast

    • 48
    • 84

    Sunny

    • 53
    • 86

    Mostly Sunny

    • 54
    • 88

    Partly Sunny

    • 50
    • 88

    Mostly Sunny

    • 47
    • 78

    Mostly Sunny

    • 47
    • 80

    Mostly Sunny

Today 4 Jul North Central Oregon

Sunny. Highs in the lower to mid 80s. West wind 5 to 15 Mph. Gusts up to 20 Mph increasing to 30 Mph in the afternoon.

Tonight 4 Jul North Central Oregon

Mostly clear. Lows in the upper 40s to mid 50s. West wind 5 to 15 Mph. Gusts up to 35 Mph decreasing to 25 Mph overnight.

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Happy Valley Reservoir Temperature Statistics

July Temperature

The Dalles Municipal Airport (46 miles)

  • Lowest 1 July, 2026

    55 °F

  • Average July

    63.2 °F

  • Highest 1 July, 2026

    71.1 °F

Climate (2021–2026)

The Dalles Municipal Airport (46 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    56.4 °F

  • Average High 2021–2026

    66.9 °F
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