Buttermilk Slough Weather Forecast

    • 35
    • 52

    Mostly Cloudy

    • 34
    • 56

    Mostly Cloudy

    • 38
    • 61

    Partly Sunny

    • 31
    • 59

    Mostly Cloudy

    • 30
    • 50

    Mostly Cloudy

    • 37
    • 56

    Chance Rain

Today 6 Mar Lower Treasure Valley

Partly sunny. Highs 49 to 54. Northwest Winds 10 to 15 Mph with Gusts to 25 Mph.

Tonight 6 Mar Lower Treasure Valley

Partly cloudy. Patchy fog after midnight. Lows 33 to 38. North Winds 10 to 15 Mph in the Evening, becoming light after midnight.

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Buttermilk Slough Temperature Statistics

March Temperature

Ontario Municipal Airport (13 miles)

  • Lowest 3 March, 2026

    30.9 °F

  • Average March

    44.4 °F

  • Highest 3 March, 2026

    61 °F

Climate (2021–Present)

Ontario Municipal Airport (13 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    67.2 °F
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