Buttermilk Slough Weather Forecast

    • 46
    • 74

    Mostly Sunny

    • 42
    • 67

    Partly Sunny

    • 43
    • 72

    Sunny

    • 47
    • 77

    Sunny

    • 50
    • 82

    Rain Showers Likely

    • 42
    • 64

    Rain Showers Likely

Today 28 Apr Lower Treasure Valley

Sunny. Highs 71 to 76. Breezy. Northwest Winds 10 to 20 Mph with Gusts to 30 Mph.

Tonight 28 Apr Lower Treasure Valley

Partly cloudy. Lows 44 to 49. Northwest Winds 10 to 15 Mph. Gusts to 25 Mph in the evening.

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Buttermilk Slough Temperature Statistics

April Temperature

Ontario Municipal Airport (13 miles)

  • Lowest 5 April, 2025

    29.8 °F

  • Average April

    51.9 °F

  • Highest 10 April, 2025

    80.7 °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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