Mission Viejo Weather Forecast

    • 62
    • 89

    Mostly Sunny

    • 64
    • 94

    Mostly Sunny

    • 63
    • 91

    Sunny

    • 63
    • 90

    Mostly Sunny

    • 61
    • 90

    Mostly Sunny

    • 59
    • 85

    Patchy Fog

    • 57
    • 80

    Partly Sunny

Today 16 Mar Orange County Inland

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Warmer. Highs 80 to 84 towards the coast to 90 farther inland. Areas of Winds west to 10 Mph with Gusts to 25 Mph.

Tonight 16 Mar Orange County Inland

Mostly clear this evening. Becoming partly cloudy. Lows 58 to 64. Areas of Winds west to 10 Mph becoming east overnight.

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Mission Viejo Temperature Statistics

March Temperature

John Wayne-Orange County Airport (12.4 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    66.6 °F

  • Highest 12 March, 2026

    91 °F

Climate (2021–Present)

John Wayne-Orange County Airport (12.4 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    65.8 °F

  • Average High 2021–2026

    73.6 °F
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