SAN DIEGO — Expect morning clouds on Saturday with a gradual clearing by the afternoon hours. It will be a partly sunny day with slightly cooler temperatures ahead of an approaching low pressure. 

SATURDAY MICROCLIMATE HIGHS:

  • Coastal highs around 66°, normal around 69°
  • Inland highs around 68°, normal around 78°
  • Mountain highs around 64°, normal around 71°
  • Desert highs around 87°, normal around 96°

Keep in mind, the UV index will peak at 8 Saturday, which is considered very high. UV radiation from the sun can cause skin damage. The time between 10 AM and 4 PM is when UV radiation from the sun is at its maximum.

A small wave of energy will come through late Saturday night offering up a slight chance of showers. But, the bulk of the moisture will occur on Sunday as an upper low drops in over Southern California.

Most of the rain will occur in the afternoon into the evening (Noon to 5pm), with light accumulations, 0.10" to 0.25", for most of the county. Mountains will see up to 0.5"+ of rain accumulation and less than 0.10" possible in the desert.

SUNDAY MICROCLIMATE HIGHS:

  • Coastal highs around 62°, normal around 69°
  • Inland highs around 59°, normal around 78°
  • Mountain highs around 50°, normal around 71°
  • Desert highs around 69°, normal around 96°

Expect drier conditions as the low moves out by Monday afternoon. 

Temperatures after Memorial Day will begin to warm as the trough over the region begins to weaken. But, don't expect a big warm up as a cool air mass lingers across the region. Temps are currently expected to reach and hover right around average.