Mission Viejo Weather Forecast

    • 61
    • 78

    Increasing Clouds

    • 60
    • 76

    Increasing Clouds

    • 61
    • 78

    Partly Sunny

    • 61
    • 81

    Partly Sunny

    • 63
    • 83

    Partly Sunny

    • 62
    • 83

    Partly Sunny

    • 62
    • 83

    Partly Sunny

Today 25 Jul Orange County Inland

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 76 to 79. Areas of Winds southwest to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 25 Jul Orange County Inland

Partly cloudy this evening. Becoming mostly cloudy. Lows 55 to 63. Areas of Winds southwest 10 Mph this evening becoming light.

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  • Temperature Real-Time

Mission Viejo Temperature Statistics

July Temperature

John Wayne-Orange County Airport (12.4 miles)

  • Lowest 2 July, 2025

    61.6 °F

  • Average July

    70.9 °F

  • Highest 8 July, 2025

    80.7 °F

Climate (2020–Present)

John Wayne-Orange County Airport (12.4 miles)

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  • Average Low 2020–2025

    58.7 °F

  • Average 2020–2025

    65.7 °F

  • Average High 2020–2025

    73.6 °F
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