Boysen Park Weather Forecast

    • 68
    • 87

    Mostly Sunny

    • 67
    • 85

    Mostly Cloudy

    • 66
    • 82

    Mostly Cloudy

    • 66
    • 83

    Partly Sunny

    • 66
    • 83

    Partly Sunny

    • 66
    • 84

    Partly Sunny

Today 11 Aug Orange County Inland

Mostly sunny. Highs 82 to 85 towards the coast to 86 to 89 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 11 Aug Orange County Inland

Mostly clear in the evening. Becoming partly cloudy. Lows 61 to 68. Areas of Winds southwest 10 Mph in the evening becoming light.

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Boysen Park Temperature Statistics

August Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 5 August, 2026

    67.6 °F

  • Average August

    79.8 °F

  • Highest 8 August, 2026

    97.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    66.5 °F

  • Average High 2021–2026

    76.8 °F
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