Mount San Antonio Weather Forecast

    • 25
    • 40

    Breezy

    • 26
    • 41

    Breezy

    • 31
    • 42

    Windy

    • 35
    • 49

    Breezy

    • 37
    • 53

    Sunny

    • 40
    • 50

    Mostly Sunny

Today 5 Mar Eastern San Gabriel Mountains

Sunny. Highs from the upper 50s to mid 60s at low Elevations to the 40s at high Elevations. North Winds 20 to 30 Mph with Gusts to 45 Mph.

Tonight 5 Mar Eastern San Gabriel Mountains

Clear. Lows in the upper 30s to mid 40s except 19 to 25 Colder Valleys and Slopes. Northeast Winds 15 to 25 Mph with Gusts to 40 Mph.

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  • Temperature Real-Time

Mount San Antonio Temperature Statistics

March Temperature

Brackett Field Airport (14.9 miles)

  • Lowest 3 March, 2026

    48.2 °F

  • Average March

    66.2 °F

  • Highest 1 March, 2026

    82.4 °F

Climate (2021–Present)

Brackett Field Airport (14.9 miles)

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  • Average Low 2021–2026

    55.8 °F

  • Average 2021–2026

    67.8 °F

  • Average High 2021–2026

    75.8 °F
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