Scorching temperatures, which are setting new records daily, will continue Monday across much of San Diego County with the National Weather Service‘s excessive heat warning in place until 8 p.m. Wednesday
Some drying with mid-level flow strengthening is expected to lead to increasing high temperatures through Monday, which is expected to be the hottest day of the week for most areas.
Highs on Monday are expected to be in the upper 80s near the coast, mid 90s inland, low 100s in the western valleys, mid 90s in the mountains, and low 110s in the deserts.
On Sunday, Escondido set a record of 102 degrees, breaking a 1997 record of 101. Oceanside Harbor set a record of 95 degrees, breaking the 1961 record of 90.
The flow from the east was predicted to weaken substantially on Tuesday, allowing the sea breeze to offer some cooling for the coastal areas.
But officials said the excessive heat warning may need to be extended into Thursday for some areas west of the mountains.
The highs were expected to weaken by the middle of the week with cooler temperatures slowly spreading inland. High temperatures are expected to return to closer to average by the end of the week, according to the weather service.
City News Service contributed to this article.