Lake Owyhee Weather Forecast

    • 62
    • 89

    Mostly Cloudy

    • 49
    • 86

    Partly Sunny

    • 50
    • 80

    Mostly Sunny

    • 59
    • 88

    Partly Sunny

    • 57
    • 89

    Partly Sunny

    • 52
    • 84

    Partly Sunny

    • 47
    • 79

    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 slight chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Chance of rain 20 percent. Lows 53 to 62. Breezy. Southwest Winds 10 to 20 Mph with Gusts to 35 Mph.

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Lake Owyhee Temperature Statistics

August Temperature

Caldwell - Caldwell Industrial Airport (36.7 miles)

  • Lowest 5 August, 2026

    51.1 °F

  • Average August

    78.4 °F

  • Highest 1 August, 2026

    100.9 °F

Climate (2021–2026)

Caldwell - Caldwell Industrial Airport (36.7 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    65.3 °F
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