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    Warnings - Fullerton

    World / United States / California / Fullerton

    33°52'N / 117°55'W / Altitude 48 m / 03:54 2026/07/22, America/Los_Angeles (UTC-7)

    temperature

    Heat Advisory issued July 22 at 12:10AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

    From: 2026/07/22, 10:00
    To: 2026/07/22, 15:30

    * WHAT...High temperatures as hot as the 90s to 102 and low temperatures as warm as the mid 70s to mid 80s for Thursday and Friday expected. * WHERE...Santa Ana Mountains and Foothills. * WHEN...From 10 AM this morning to 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses.

    • Orange
    • Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
    • NWS San Diego CA
    • 2026/07/22, 00:10
    temperature

    Heat Advisory issued July 22 at 12:10AM PDT until July 27 at 8:00PM PDT by NWS San Diego CA

    From: 2026/07/22, 10:00
    To: 2026/07/22, 15:30

    * WHAT...High temperatures in the 90s and low temperatures in the upper 60s and lower 70s expected. * WHERE...Orange County Inland Areas. * WHEN...From 10 AM this morning to 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses.

    • Orange County Inland,Orange
    • Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
    • NWS San Diego CA
    • 2026/07/22, 00:10