San Diego is starting Thursday with temperatures in the 70s to mid-80s and scattered to broken clouds between 10,000 and 20,000 feet, but a day that looks pleasant at breakfast will turn dangerously hot by afternoon. The high is expected in the 80s at the beaches. An Extreme Heat Warning remains in effect through 8 p.m. Thursday.
The warning covers San Diego County coastal areas and valleys, with the National Weather Service saying temperatures will range from the 80s at the beaches to the upper 90s to 108 degrees in the Inland Empire. Officials recommend drinking plenty of fluids, avoiding afternoon sun and checking on vulnerable neighbors. The latest alert extends the heat story covered in Hoodline's Wednesday report.
Heat Eases Friday
Friday will still be warm, but cooling is expected as the heat wave begins to loosen its grip. Coastal low clouds and fog are expected to increase after 07Z Friday, with ceilings most likely from 11Z to 16Z.
Foggy Mornings, Cooler Weekend
Coastal fog returns late Thursday night, with patchy fog possible Friday morning. Saturday should top out near 81 degrees, followed by highs around 79 Sunday and 78 Monday.
The cooler pattern continues into next week. Overnight lows are expected to remain mostly in the 60s and lower 70s near the coast and valleys.
What To Watch Thursday
The broader regional forecast allows for a slight chance of showers or thunderstorms over the mountains Thursday afternoon, so people heading inland should keep an eye on changing conditions.
For coastal residents, the safest plan is to move strenuous outdoor activity to the morning or evening, take frequent breaks and bring water. The most dangerous heat will arrive during the afternoon, before the region gets a much-needed cooldown heading into the weekend.
