Southern California heat forecast peaks at 110°F under high‑pressure ridge

A high‑pressure ridge will dominate Southern California weather through the second half of June 2026, bringing mostly clear skies and very hot temperatures. Forecasts show daytime highs reaching the upper‑90s along the coast and climbing to around 110°F in inland desert valleys, with only a minimal chance of rain.

Marine‑layer clouds are expected to linger over coastal valleys in the early mornings, but the overall pattern will remain sunny with little to no “June Gloom.” By late week, the high pressure should strengthen further, keeping temperatures elevated and precipitation unlikely.