Trailview Park Weather Forecast

    • 62
    • 85

    Becoming Sunny

    • 65
    • 90

    Mostly Sunny

    • 71
    • 94

    Mostly Sunny

    • 73
    • 99

    Hot

    • 74
    • 97

    Hot

    • 73
    • 97

    Hot

Today 30 Sep Los Angeles County San Gabriel Valley

Sunny except for patchy low Clouds and fog in the morning. Highs in the mid 80s to around 90.

Tonight 30 Sep Los Angeles County San Gabriel Valley

Mostly clear except for patchy low Clouds and fog after midnight. Lows in the upper 50s to mid 60s.

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Trailview Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (7.5 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    77.6 °F

  • Highest 9 September, 2026

    108.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    57.2 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    76.9 °F
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