Thomas Plaza Weather Forecast

    • 66
    • 89

    Increasing Clouds

    • 67
    • 91

    Gradual Clearing

    • 67
    • 93

    Mostly Cloudy

    • 64
    • 85

    Partly Sunny

    • 63
    • 81

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 66
    • 91

    Sunny

Today 24 Sep Los Angeles County San Gabriel Valley

Sunny. Highs around 90.

Tonight 24 Sep Los Angeles County San Gabriel Valley

Mostly clear in the evening then partly cloudy. Lows in the lower to mid 60s.

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Thomas Plaza Temperature Statistics

September Temperature

Brackett Field Airport (2.5 miles)

  • Lowest 2 September, 2026

    60.8 °F

  • Average September

    77.7 °F

  • Highest 9 September, 2026

    105.8 °F

Climate (2021–2026)

Brackett Field Airport (2.5 miles)

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  • Average Low 2021–2026

    56.1 °F

  • Average 2021–2026

    68 °F

  • Average High 2021–2026

    76 °F
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