San Dimas Canyon Park Weather Forecast

    • 65
    • 86

    Becoming Sunny

    • 67
    • 89

    Sunny

    • 67
    • 92

    Sunny

    • 68
    • 92

    Slight Chance Thunderstorms

    • 68
    • 90

    Slight Chance Thunderstorms

    • 64
    • 85

    Slight Chance Thunderstorms

Today 14 Sep Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then sunny. Highs in the mid 80s to around 90.

Tonight 14 Sep Los Angeles County San Gabriel Valley

Clear except for patchy low Clouds and fog after midnight. Lows in the mid to upper 60s.

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San Dimas Canyon Park Temperature Statistics

September Temperature

Brackett Field Airport (2.5 miles)

  • Lowest 9 September, 2025

    59 °F

  • Average September

    83 °F

  • Highest 2 September, 2025

    102.2 °F

Climate (2020–Present)

Brackett Field Airport (2.5 miles)

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  • Average Low 2020–2025

    55.6 °F

  • Average 2020–2025

    67.8 °F

  • Average High 2020–2025

    75.7 °F
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