San Diego County December 18, 2024 4:03 am San Diego weather today: Brooke Martell's forecast for Dec. 18, 2024 San Diego weather today: Brooke Martell’s forecast for Dec. 18, 2024. US & World Videos 3:35 Angelica Campos' morning weather forecast for Dec. 22, 2024 3:40 Francella Perez's evening weather forecast for December 21, 2024 3:13 Angelica Campos' morning weather forecast for Dec. 21, 2024 2:23 La Niña returns: What will winter be like in San Diego? 3:25 Francella Perez's evening weather forecast for December 20, 2024