Montclair Weather Forecast

    • 54
    • 85

    Increasing Clouds

    • 51
    • 72

    Increasing Clouds

    • 51
    • 69

    Mostly Cloudy

    • 48
    • 67

    Partly Sunny

    • 49
    • 69

    Partly Sunny

    • 51
    • 68

    Mostly Cloudy

    • 51
    • 70

    Mostly Cloudy

Today 25 Mar San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 87 to 91. Areas of Winds east to 10 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 25 Mar San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. Cooler. Lows around 50 in wind Sheltered Areas to 49 to 55 in warmer Locations. Areas of Winds west to 10 Mph this evening becoming light.

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Montclair Temperature Statistics

March Temperature

Brackett Field Airport (5 miles)

  • Lowest 3 March, 2025

    39.2 °F

  • Average March

    57.3 °F

  • Highest 19 March, 2025

    75.2 °F

Climate (2020–Present)

Brackett Field Airport (5 miles)

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  • Average Low 2020–2025

    55.6 °F

  • Average 2020–2025

    67.7 °F

  • Average High 2020–2025

    75.6 °F
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