Montclair Weather Forecast

    • 50
    • 68

    Chance Rain Showers

    • 48
    • 65

    Partly Sunny

    • 51
    • 72

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

Today 4 May San Bernardino and Riverside County Valleys-The Inland Empire

Cloudy with patchy fog and drizzle this Morning, then partly cloudy this afternoon. Highs 69 to 73. Areas of Winds west to 10 Mph. Becoming southwest 10 to 20 Mph with Gusts to 30 Mph this afternoon.

Tonight 4 May San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy in the Evening, then cloudy with a chance of Showers overnight. Colder. Lows 41 to 51. Areas of Winds southwest 10 to 20 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight. Chance of measurable precipitation 50 percent.

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Montclair Temperature Statistics

May Temperature

Brackett Field Airport (5 miles)

  • Lowest 1 May, 2024

    55.4 °F

  • Average May

    65.6 °F

  • Highest 1 May, 2024

    71.6 °F

Climate (2019–Present)

Brackett Field Airport (5 miles)

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  • Average Low 2019–2024

    55.5 °F

  • Average 2019–2024

    67.6 °F

  • Average High 2019–2024

    75.5 °F
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