Weiser Weather Forecast

    • 31
    • 60

    Chance Rain Showers

    • 29
    • 57

    Mostly Cloudy

    • 30
    • 59

    Partly Sunny

    • 30
    • 58

    Mostly Cloudy

    • 27
    • 57

    Mostly Cloudy

    • 29
    • 56

    Mostly Cloudy

Today 26 Oct Lower Treasure Valley

Areas of frost in the morning. Rain Showers likely with a slight chance of Thunderstorms in the afternoon. Chance of rain 60 percent. Highs 57 to 62. Breezy. Southeast Winds 10 to 15 Mph in the Morning, shifting to west 10 to 20 Mph in the afternoon. Gusts to 30 Mph.

Tonight 26 Oct Lower Treasure Valley

Partly cloudy. Areas of fog after midnight. Lows 34 to 39. Southwest Winds 10 to 15 Mph with Gusts to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Weiser Temperature Statistics

October Temperature

Ontario Municipal Airport (16.2 miles)

  • Lowest 16 October, 2026

    29.6 °F

  • Average October

    57.8 °F

  • Highest 6 October, 2026

    86.6 °F

Climate (2021–2026)

Ontario Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    67.2 °F
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