Expect foggy mornings along the coast at least through Wednesday morning. Fog will mostly be limited to the coastal areas and beaches, reducing visibility to 1 mile or less at times. Be sure to allow extra time and drive cautiously during your Monday morning commute.
The marine layer will be stubborn to clear near the coast, but we should see some sunshine by late Monday morning or early afternoon. Inland valleys are expected to clear more quickly, with skies turning mostly sunny by 8 to 9 AM.
A strong ridge of high pressure will settle over our area, combined with some offshore flow, leading to a significant increase in temperatures starting on Monday. The hottest days of the week are expected to be Tuesday and Wednesday, with only some minor cooling possible on Thursday and Friday. Regardless, daytime highs will stay well above average through the end of the week.
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A Heat Advisory was issued for the valleys starting on Tuesday at 10 AM and continues through 8 PM Wednesday with daytime temperatures that will range between 90 to 102 degrees.
An Excessive Heat Warning for the deserts will also go into effect Tuesday morning but will continue until Thursday night with temperatures between 108 to 113 degrees and overnight lows in the upper 70s to low 80s.
Here's how you can stay safe as heat wave grips San Diego County
More on heat:
Monday
- Coast: clouds and some sun- mid to low 70s
- Inland: mostly sunny - upper 80s to low 90s
- Mountains: sunny - upper 80s to low 90s
- Deserts: sunny - up to 104
