Costa Mesa Weather Forecast

    • 59
    • 70

    Rain Showers

    • 54
    • 67

    Rain Showers

    • 54
    • 67

    Mostly Sunny

    • 57
    • 71

    Mostly Sunny

    • 59
    • 74

    Partly Sunny

    • 59
    • 75

    Partly Sunny

Today 13 Oct Orange County Coastal

Mostly cloudy this morning. Becoming partly cloudy. Highs around 70. Areas of Winds south 10 to 15 Mph. Gusts to 25 Mph. Becoming 30 Mph this afternoon.

Tonight 13 Oct Orange County Coastal

Mostly cloudy. A slight chance of Showers in the Evening, then Showers likely overnight. Lows 56 to 59. Areas of Winds south 10 to 15 Mph. Gusts to 25 Mph. Becoming 30 Mph overnight. Chance of measurable precipitation 70 percent.

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Costa Mesa Temperature Statistics

October Temperature

John Wayne-Orange County Airport (3.7 miles)

  • Lowest 5 October, 2025

    60.1 °F

  • Average October

    67.8 °F

  • Highest 10 October, 2025

    78.1 °F

Climate (2020–Present)

John Wayne-Orange County Airport (3.7 miles)

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  • Average Low 2020–2025

    58.6 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.4 °F
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