Early signs of monsoon season to hit mountains

SAN DIEGO (KUSI) — A ridge of high pressure is bringing San Diego some monsoon moisture Monday and the mountains may even receive some isolated showers and thunderstorms.

Along the coast, a morning marine layer bringing clouds and patchy fog will clear mid-morning. Inland areas will see mostly sun with high temperatures.

An excessive heat advisory is in effect for mountains and deserts until 8 p.m. Wednesday. Tuesday and Wednesday are expected to see the warmest temperatures, reaching the 90s and triple digits. San Diego will experience a slight cool down later this week.

Water temperatures are warming up as well Monday. Surf will be moderate with some rip currents.

Monday’s high temperatures: 76 degrees along the coast, 90 degrees inland, 85 degrees for the mountains and 110 degrees in the deserts.