Mission Viejo Weather Forecast

    • 61
    • 86

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 61
    • 83

    Patchy Fog

    • 62
    • 86

    Sunny

    • 64
    • 92

    Sunny

    • 65
    • 93

    Sunny

Today 24 Sep Orange County Inland

Partly cloudy in the morning. Becoming mostly sunny. Patchy fog with local visibility one quarter mile or less at Times in the morning. Highs 78 to 83 towards the coast to 86 farther inland. Light Winds.

Tonight 24 Sep Orange County Inland

Mostly clear in the evening. Becoming partly cloudy. Lows 57 to 62. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mission Viejo Temperature Statistics

September Temperature

John Wayne-Orange County Airport (12.4 miles)

  • Lowest 11 September, 2020

    61 °F
  • Average September

    73.1 °F
  • Highest 5 September, 2020

    102.9 °F

Climate (2010–Present)

John Wayne-Orange County Airport (12.4 miles)

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  • Average Low 2010–Present

    59.2 °F
  • Average 2010–Present

    65.4 °F
  • Average High 2010–Present

    73.7 °F
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