Copeland Reservoirs Weather Forecast

    • 52
    • 84

    Decreasing Clouds

    • 40
    • 79

    Partly Sunny

    • 40
    • 76

    Mostly Sunny

    • 51
    • 85

    Partly Sunny

    • 48
    • 84

    Partly Sunny

    • 43
    • 78

    Partly Sunny

    • 38
    • 73

    Partly Sunny

Today 28 Aug Malheur County

Mostly cloudy this Morning, then partly cloudy with scattered Showers and isolated Thunderstorms this afternoon. Patchy smoke this afternoon. Chance of rain 30 percent. Highs 80 to 88. Breezy. Southwest Winds up to 10 Mph this Morning, increasing to south 10 to 20 Mph this afternoon.

Tonight 28 Aug Malheur County

Patchy smoke this evening. Mostly cloudy with a chance of Showers this Evening, then partly cloudy after midnight. Chance of rain 30 percent. Lows 53 to 62. Breezy. Southwest Winds 10 to 20 Mph with Gusts to 35 Mph.

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  • Temperature Real-Time

Copeland Reservoirs Temperature Statistics

August Temperature

Ontario Municipal Airport (54.1 miles)

  • Lowest 5 August, 2026

    50.6 °F

  • Average August

    77.9 °F

  • Highest 1 August, 2026

    99.6 °F

Climate (2021–2026)

Ontario Municipal Airport (54.1 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    67.1 °F
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