Arroyo Pescadero Trail Weather Forecast

    • 55
    • 69

    Decreasing Clouds

    • 54
    • 71

    Mostly Cloudy

    • 54
    • 71

    Mostly Cloudy

    • 57
    • 68

    Rain Showers

    • 56
    • 63

    Rain Showers

    • 54
    • 64

    Rain Showers

Today 20 Dec Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then sunny. Fog locally dense with visibility one quarter mile or less. Highs around 70.

Tonight 20 Dec Los Angeles County San Gabriel Valley

Low Clouds and fog developing. Lows in the lower 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arroyo Pescadero Trail Temperature Statistics

December Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 5 December, 2025

    45 °F

  • Average December

    60.9 °F

  • Highest 10 December, 2025

    84.9 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.4 °F
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