Michigan Park Weather Forecast

    • 70
    • 89

    Patchy Fog

    • 70
    • 89

    Mostly Cloudy

    • 67
    • 86

    Mostly Cloudy

    • 66
    • 83

    Mostly Sunny

    • 69
    • 90

    Mostly Sunny

    • 69
    • 92

    Sunny

Today 25 Sep Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then sunny. Highs around 90.

Tonight 25 Sep Los Angeles County San Gabriel Valley

Low Clouds and fog developing. Lows in the mid 60s to around 70.

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Michigan Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 2 September, 2026

    63.6 °F

  • Average September

    77.7 °F

  • Highest 9 September, 2026

    108.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    57.1 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    76.9 °F
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