Placentia Weather Forecast

    • 56
    • 75

    Increasing Clouds

    • 57
    • 74

    Mostly Cloudy

    • 57
    • 68

    Cloudy

    • 53
    • 69

    Partly Sunny

    • 57
    • 76

    Mostly Sunny

    • 60
    • 82

    Mostly Sunny

Today 15 May Orange County Inland

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs around 72 towards the coast to 73 to 76 farther inland. Areas of Winds south to 10 Mph.

Tonight 15 May Orange County Inland

Mostly clear in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 51 to 57. Areas of Winds south 10 Mph in the evening becoming light.

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Placentia Temperature Statistics

May Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 8 May, 2025

    54.6 °F

  • Average May

    67.2 °F

  • Highest 10 May, 2025

    99.6 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.8 °F
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