SAN DIEGO — It was a warm Wednesday across San Diego County. Daytime highs remained above normal as triple digit heat returned to the desert. 

Backing away from the heat of today, expect these overnight lows...

  • Coast: upper 50s
  • Inland: mid 50s
  • Mountains: mid to upper 40s
  • Desert: mid 60s

Additionally, a developing coastal eddy will bring coastal low clouds and patchy fog will develop again during the overnight hours. The haze will extend 10 - 15 miles inland, impacting portions of I-15 and Highway 163. Expect to be dense in spots through tomorrow morning. It will clear out around 10 am.

High pressure will remain our main weather maker for another day as daytime highs remain above seasonal and a touch warmer than Wednesday.


  • Coast: near 71°, normal around 68°.
  • Inland: near 83°, normal around 76°.
  • Mountains: near 79°, normal around 63°.
  • Desert: 101°, normal around 87°.

High pressure will weaken Friday through the weekend due to a cut-off low coming in from the Pacific Ocean. Temperatures will reach about average levels for the coast and inland areas by Saturday.

Models have slowed the approach of the cut-off low, showing the low making it's landfall Monday.The slight chance for light showers Sunday evening into Monday evening.