Weiser Municipal Airport Weather Forecast

    • 44
    • 68

    Chance Thunderstorms

    • 43
    • 66

    Chance Rain Showers

    • 42
    • 66

    Mostly Sunny

    • 49
    • 71

    Mostly Cloudy

    • 47
    • 69

    Mostly Cloudy

    • 46
    • 69

    Chance Rain Showers

Today 12 May Lower Treasure Valley

Partly cloudy with a chance of Showers. A chance of Thunderstorms this afternoon. Chance of rain 40 percent. Much cooler with Highs 65 to 70. Breezy. Southwest Winds 10 to 20 Mph with Gusts to 30 Mph.

Tonight 12 May Lower Treasure Valley

Partly cloudy. A chance of rain Showers with a slight chance of Thunderstorms in the Evening, then a slight chance of rain Showers after midnight. Chance of rain 30 percent. Lows 41 to 46. Breezy. Northwest Winds 10 to 20 Mph.

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Weiser Municipal Airport Temperature Statistics

May Temperature

Ontario Municipal Airport (13 miles)

  • Lowest 2 May, 2025

    38.6 °F

  • Average May

    61.9 °F

  • Highest 9 May, 2025

    86 °F

Climate (2020–Present)

Ontario Municipal Airport (13 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    66.9 °F
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