SAN DIEGO — Thursday afternoon high temperatures will be below seasonal average.
- Coastal highs 71°-76°, normal around 76°.
- Inland highs 75°-80°, normal around 87°.
- Mountain highs 67°-79°, normal around 79°.
- Desert highs 91°-97°, normal around 100°.
At the beach, the rip current risk will be low with water temperature 70°-72°. Waves are 1'-3' from the southwest.
Coastal clouds started the morning as far as the inland areas Thursday morning, thanks to the increased onshore flow. Coverage of the clouds were still a little spotty over the coast however, due to the weak inversion. Clouds should clear by mid-morning for a sunny afternoon.
The desert die of the mountains are still dry and gusty, with gusts up to 40 mph possible. There is, therefore, an increased fire risk in this area.
The UV index will peak at 8 Thursday, 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.
THE WEEK AHEAD:
The trough of low pressure over the West Coast will weaken and move eastward Thursday night into Friday morning. Afternoon temperatures will slightly increase Friday as the trough exits the region. Onshore flow will weaken and morning clouds will be less expansive.
As the high pressure builds, a lack of a ridge will prevent the temperatures from getting too hot. The hottest day of the next few days will likely be Sunday, with temperatures several degrees above average.
Temperatures are cool again early next week as another trough sends another push of cool air into the Western United States. The previous chance for rain has decreased as models pushed the moisture further towards Arizona. There does remain a very small chance of some rain for the mountains and deserts. This will be a developing forecast.