Ontario Municipal Airport Weather Forecast

    • 69
    • 100

    Areas Smoke

    • 65
    • 100

    Hot

    • 65
    • 96

    Mostly Sunny

    • 66
    • 93

    Mostly Cloudy

    • 65
    • 92

    Partly Sunny

    • 64
    • 92

    Mostly Sunny

Today 17 Jul Oregon Lower Treasure Valley

Sunny. Areas of smoke. Highs 97 to 102. Northwest Winds up to 10 Mph. Gusts to 20 Mph this afternoon.

Tonight 17 Jul Oregon Lower Treasure Valley

Areas of smoke in the evening. Mostly clear. Lows 64 to 71. Northwest Winds around 10 Mph with Gusts to 20 Mph.

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Ontario Municipal Airport Temperature Statistics

July Temperature

Ontario Municipal Airport (0 miles)

  • Lowest 5 July, 2025

    50.6 °F

  • Average July

    79.9 °F

  • Highest 1 July, 2025

    102.9 °F

Climate (2020–Present)

Ontario Municipal Airport (0 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    67.1 °F
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