By Reginald Stanley. Posted April 20, 2026, 8:38 PM.

A cold late-season storm, originating in the Gulf of Alaska, will travel south down the state Tuesday into Wednesday.

For Los Angeles County and northwards, the storm is projected to bring the potential for thunderstorms and brief heavy precipitation - however, rain chances drop significantly for areas south and east of Los Angeles as current model projections depict the storm weakening as it approaches Orange, San Bernardino, Riverside and San Diego counties. Strong southwest to west winds are forecast for the mountains and deserts Tuesday night into Wednesday morning. Precipitation totals for the inland valleys and coasts are predicted to be around 0.1 inch. Another storm is forecast to bring additional light precipitation and winds to the region next weekend.