• Friday

    Jul 29

    91°Lo 66°

    Mostly sunny

    Beneficial weather for colds
    • Avg
      Temp
      79°
    • Avg
      RealFeel
      85°
    • Hi
      RealFeel
      104°
    more
  • Saturday

    Jul 30

    86°Lo 66°

    Sunshine and patchy clouds

    Beneficial weather for colds
    • Avg
      Temp
      76°
    • Avg
      RealFeel
      81°
    • Hi
      RealFeel
      96°
    more
  • Sunday

    Jul 31

    85°Lo 65°

    Some sun; fog early on

    Beneficial weather for colds
    • Avg
      Temp
      75°
    • Avg
      RealFeel
      80°
    • Hi
      RealFeel
      95°
    more
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Rancho Santa Margarita Weather Report

Oppressive heat to envelop western US as late-week highs soar 10 to 15 degrees Fahrenheit above average

July 28, 2016; 10:33 PM ET

Highs will run between 10 and 15 degrees Fahrenheit above average across much of the interior western United States into the upcoming weekend. more >

Respiratory Health Live Feed

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Flu Season is Just Around the Corner

Sep 11, 2012; 2:00 PM ET The peak of flu season may not be until January, but preparations should begin now. Adrienne Veilleux has more.

Fri. Cold & Flu

Fri. UV Index