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    • Today's Weather - Diamond Bar, CA

      January 12, 2026    12:06 AM
      California State Fullerton - Humanities Bldg NE
      63°
      Feels Like 63°
      Hi 64°F Lo 49°F
      Clear
      Clear
    • Weather Details
      • Windchill 52ºF Daily Rain --
      • Dewpoint 28ºF Monthly Rain 52"
      • Humidity 40% Avg. Wind NE 5mph
      • Pressure -- Wind Gust --
      • Sunrise 6:57 AM Moon Waning Crescent
      • Sunset 5:02 PM UV Index 3 (Moderate)
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