San Diego

Cooler Weather Today with Warmer Weekend Ahead for Southern California, Says NWS San Diego

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Published on October 31, 2025
Cooler Weather Today with Warmer Weekend Ahead for Southern California, Says NWS San DiegoSource: Amantonacci, CC BY-SA 4.0, via Wikimedia Commons

As the weekend gears up in Southern California, the weather seems to be taking a slight turn towards the cooler side for today, but the sun seekers can look forward to some warmth during the weekend. According to the National Weather Service in San Diego, coastal and valley regions will experience a dip in high temperatures today, with temperatures expected to warm up over the weekend.

The shifting climate patterns bring winds and low clouds from the coast further inland, introducing an onshore flow that's spreading cooler air as far inland as the western valleys of San Diego County and past Interstate 5 in Orange County. High temperatures today are supposed to hover around 70 near the coast. At the same time, the Inland Empire might see some areas in the 80s and lower to mid-90s in the lower deserts. The weekend will enjoy a reprieve with Sunday high temperatures expected between the lower 70s near the coast and the mid 80s to lower 90s for the Inland Empire, the lower to mid 90s for the lower deserts, so if you've been longing for just a touch of summer to leak back into the fall tapestry, your wish is the weekend's command.

Looking ahead, the NWS San Diego forecast indicates a cooling trend starting Monday, with temperatures dropping into the upper 60s near the coast and the 70s for the Inland Empire by next Thursday, as a low-pressure system takes effect. Those who enjoy the cooler sweater weather will appreciate the return of the marine layer, which will blanket portions of the inland valleys by Wednesday morning, ushering in a deepening of the night and morning coastal low clouds.

Minimal visibility issues are currently affecting coastal regions, but these are expected to improve after mid-morning, with conditions clearing around 2 PM. Come nighttime, coastal low clouds will creep back in, but with less severity. For those navigating the dusky skies, it's a game of peek-a-boo with fog and visibility playing the main characters. Maritime and beach-goers, fear not, as no hazardous concerns are forecast through Tuesday, but be sure to catch the long period southwest swell bringing elevated surf to southwest facing beaches this weekend, indeed it seems whether you're in the water or out, nature's got a plan to keep things interesting.