Los Angeles County, CA: Current UV Index and Hourly Forecast

As of 3:03 PM PDT on September 16, 2025, out of 141 cities in Los Angeles County, CA in our database, 87 cities (62%) have a UV Index reading of High, while 54 cities (38%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Glendora, CA with a reading of 5.8.

Over the next 24 hours, the highest UV Index reading in Los Angeles County, CA is expected to be 8.3 in Arcadia between 1:00 PM - 2:00 PM PDT tomorrow.

Search Cities in Los Angeles County, CA

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Los Angeles County, CA as of 3:03 PM PDT, September 16, 2025

Current UV Index in Cities in Los Angeles County, CA

3:03 PM PDT, September 16, 2025