Rancho Santa Margarita Weather Forecast

    • 54
    • 72

    Increasing Clouds

    • 54
    • 67

    Chance Rain Showers

    • 54
    • 61

    Chance Rain Showers

    • 54
    • 67

    Patchy Fog

    • 55
    • 71

    Mostly Cloudy

    • 54
    • 72

    Patchy Fog

Today 14 May Orange County Inland

Low Clouds and fog in the morning then mostly sunny. Highs 70 to 75. Light Winds.

Tonight 14 May Orange County Inland

Partly cloudy in the evening then low Clouds with patchy fog and drizzle. Lows 52 to 58. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rancho Santa Margarita Temperature Statistics

May Temperature

John Wayne-Orange County Airport (14.9 miles)

  • Lowest 1 May, 2021

    60.1 °F
  • Average May

    64.6 °F
  • Highest 4 May, 2021

    75.9 °F

Climate (2010–Present)

John Wayne-Orange County Airport (14.9 miles)

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  • Average Low 2010–Present

    58.3 °F
  • Average 2010–Present

    64.7 °F
  • Average High 2010–Present

    73.2 °F
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