SAN DIEGO — Monday afternoon high temperatures will be below seasonal average.
- Coastal highs 70°-81°, normal around 77°.
- Inland highs 79°-91°, normal around 89°.
- Mountain highs 84°-94°, normal around 85°.
- Desert highs 106°-111°, normal around 106°.
At the beach, the rip current risk is moderate with water temperature 63°-70°. Waves are 1'-3' out of the southwest with a small northwest windswell.
Morning low clouds stretch all the way to the foothills Monday morning. There will be very little, if any, fog impact on the morning commute for Monday. Clouds will clear a little faster Monday compared to Sunday, with some lingering clouds possible at the coastline.
The UV index will peak at 10 Monday, which is considered Very High. Sun protection is needed, UV radiation from the sun will cause skin damage. The time between 10 AM and 4 PM is when UV radiation from the sun is at its maximum.
An Excessive Heat Warning has been issued for San Diego County deserts from 11 AM Wednesday to 8 PM Wednesday. Afternoon high temperatures 112°-118°. Overexposure to the heat can cause heat illness.
THE WEEK AHEAD:
High pressure over Texas is expanding and strengthening towards Southern California. Temperatures will be on the rise as the high approaches. This will result in a mini heat eave which will peak on Wednesday.
The marine layer will become more shallow as high pressure increases over the region. This will result in increased chance of patchy dense fog in the mornings.
A trough will push the high pressure out of the region on Thursday, dropping temperatures to below average through Friday.
High pressure will rebound, with hot temperatures possible through the weekend once again.