Costa Mesa Weather Forecast

    • 57
    • 74

    Increasing Clouds

    • 59
    • 78

    Decreasing Clouds

    • 63
    • 83

    Sunny

    • 64
    • 85

    Sunny

    • 65
    • 85

    Partly Sunny

    • 64
    • 83

    Partly Sunny

    • 62
    • 80

    Mostly Sunny

Today 4 Nov Orange County Coastal

Mostly sunny. Patchy drizzle this morning. Highs 72 to 76. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 4 Nov Orange County Coastal

Clear this evening. Becoming partly cloudy. Lows 56 to 59. Light Winds.

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  • Temperature Real-Time

Costa Mesa Temperature Statistics

November Temperature

John Wayne-Orange County Airport (3.7 miles)

  • Lowest 2 November, 2026

    55.9 °F

  • Average November

    65.3 °F

  • Highest 2 November, 2026

    75.9 °F

Climate (2021–2026)

John Wayne-Orange County Airport (3.7 miles)

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  • Average Low 2021–2026

    59.2 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    73.9 °F
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