Costa Mesa Weather Forecast

    • 52
    • 72

    Partly Sunny

    • 46
    • 74

    Mostly Sunny

    • 46
    • 67

    Mostly Cloudy

    • 43
    • 59

    Rain Showers Likely

    • 42
    • 58

    Chance Rain Showers

    • 43
    • 61

    Partly Sunny

Today 22 Jan Orange County Coastal

Partly cloudy. Highs around 70 at the Beaches to 74 farther inland and near higher coastal Terrain. Light Winds becoming northwest 10 Mph in the afternoon.

Tonight 22 Jan Orange County Coastal

Partly cloudy in the evening. Becoming mostly clear. Lows 49 to 52. Areas of Winds northeast 20 to 30 Mph. Gusts to 45 Mph. Becoming 55 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Costa Mesa Temperature Statistics

January Temperature

John Wayne-Orange County Airport (3.7 miles)

  • Lowest 16 January, 2025

    44.7 °F

  • Average January

    59.1 °F

  • Highest 15 January, 2025

    74.6 °F

Climate (2020–Present)

John Wayne-Orange County Airport (3.7 miles)

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  • Average Low 2020–2025

    58.9 °F

  • Average 2020–2025

    65.8 °F

  • Average High 2020–2025

    73.8 °F
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