Costa Mesa Weather Forecast

    • 51
    • 63

    Increasing Clouds

    • 52
    • 60

    Rain Showers

    • 52
    • 63

    Chance Rain Showers

    • 53
    • 66

    Mostly Sunny

    • 53
    • 67

    Mostly Sunny

    • 53
    • 66

    Partly Sunny

Today 19 Nov Orange County Coastal

Mostly sunny. Highs 61 to 64. Light Winds becoming west 10 Mph in the afternoon.

Tonight 19 Nov Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy. Lows 48 to 52. Areas of Winds northwest 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Costa Mesa Temperature Statistics

November Temperature

John Wayne-Orange County Airport (3.7 miles)

  • Lowest 6 November, 2025

    55.9 °F

  • Average November

    63.9 °F

  • Highest 10 November, 2025

    78.1 °F

Climate (2020–Present)

John Wayne-Orange County Airport (3.7 miles)

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  • Average Low 2020–2025

    58.7 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.4 °F
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