Short-term: Tonight through Tuesday will stay cool and mostly cloudy across the region, with scattered light showers mainly from the coastal slopes to the beaches and especially in San Diego County 🌧️. Gusty west winds will affect mountain passes and deserts. Temperatures remain chilly, especially in the mountains Tuesday and Wednesday mornings. Long-term: From Wednesday into late week, the low pressure system moves out and high pressure builds in, bringing a warming and drying trend ☀️. Temperatures will climb to around 10 degrees above normal away from the coast, with 70s–80s in coastal/valley areas and near 100 degrees in the lower deserts, creating increasing heat risk.