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    • Today's Weather - Diamond Bar, CA

      December 25, 2025    5:38 PM
      California State Fullerton - Humanities Bldg NE
      64°
      Feels Like 64°
      Hi 64°F Lo 54°F
      30% Chance Rain Showers
      30% Chance Rain Showers
    • Weather Details
      • Windchill 57ºF Daily Rain --
      • Dewpoint 48ºF Monthly Rain 61"
      • Humidity 73% Avg. Wind S 4mph
      • Pressure -- Wind Gust --
      • Sunrise 6:54 AM Moon Waxing Crescent
      • Sunset 4:48 PM UV Index 3 (Moderate)
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