Weiser Municipal Airport Weather Forecast

    • 33
    • 60

    Mostly Sunny

    • 34
    • 63

    Partly Sunny

    • 37
    • 65

    Partly Sunny

    • 41
    • 65

    Mostly Cloudy

    • 40
    • 58

    Rain Showers

    • 33
    • 54

    Rain Showers Likely

Today 21 Oct Lower Treasure Valley

Sunny. Highs 58 to 63. Light Winds.

Tonight 21 Oct Lower Treasure Valley

Mostly clear. Lows 32 to 38. Light Winds.

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Weiser Municipal Airport Temperature Statistics

October Temperature

Ontario Municipal Airport (13 miles)

  • Lowest 7 October, 2025

    36 °F

  • Average October

    55 °F

  • Highest 10 October, 2025

    80.1 °F

Climate (2020–Present)

Ontario Municipal Airport (13 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    67 °F
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