Owyhee Weather Forecast

    • 34
    • 68

    Mostly Sunny

    • 39
    • 72

    Mostly Sunny

    • 38
    • 73

    Sunny

    • 41
    • 75

    Mostly Sunny

    • 40
    • 74

    Mostly Sunny

    • 40
    • 73

    Mostly Sunny

Today 13 Oct Oregon Lower Treasure Valley

Areas of frost with patchy fog this morning. Sunny, warmer with Highs 67 to 72. Northwest Winds 10 to 15 Mph.

Tonight 13 Oct Oregon Lower Treasure Valley

Mostly clear. Lows 32 to 39. Northwest Winds up to 10 Mph with Gusts to 20 Mph.

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Owyhee Temperature Statistics

October Temperature

Ontario Municipal Airport (14.9 miles)

  • Lowest 7 October, 2026

    39.7 °F

  • Average October

    62.9 °F

  • Highest 6 October, 2026

    86.6 °F

Climate (2021–2026)

Ontario Municipal Airport (14.9 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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