Brea Weather Forecast

    • 68
    • 94

    Mostly Sunny

    • 68
    • 92

    Mostly Sunny

    • 68
    • 93

    Mostly Sunny

    • 69
    • 94

    Mostly Sunny

    • 69
    • 93

    Mostly Sunny

    • 70
    • 94

    Mostly Sunny

    • 71
    • 95

    Mostly Sunny

Today 19 Aug Orange County Inland

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 85 to 88 towards the coast to 91 to 95 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 19 Aug Orange County Inland

Mostly clear this evening. Becoming partly cloudy. Lows 65 to 70. Areas of Winds south to 10 Mph this evening becoming light.

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Brea Temperature Statistics

August Temperature

Fullerton, Fullerton Municipal Airport (5.6 miles)

  • Lowest 17 August, 2026

    66 °F

  • Average August

    79.6 °F

  • Highest 8 August, 2026

    97.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (5.6 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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