San Diegans can expect a notable rise in temperatures through the coming days, with the possibility of some areas experiencing their first 90+ degree readings of the year. The National Weather Service in San Diego has projected this increase for the western US, including Southern California, anticipating temperatures 15-20 degrees above average for inland regions. A reminder for those planning to be outdoors for extended periods: staying hydrated is crucial.
Alongside the heat, Santa Ana winds are expected to return mid-week, potentially intensifying by Wednesday and Thursday. As the warm trend peaks, residents in the low deserts and valleys west of the mountains might experience temperature highs around the 90-degree mark, according to a forecast discussion obtained by the National Weather Service. However, by the weekend, a shift in the weather pattern could bring cooler temperatures and chances for light precipitation.
In the immediate future, foggy conditions could impact coastal areas, particularly overnight and early Sunday morning. NWS San Diego's social media post warns of a 30 to 60% chance of visibility dropping below 1/4 mile during these times, which might affect areas including the San Diego and John Wayne Airports.
There will be coastal fog overnight/early Sunday, with a 30 to 60% chance of visibility below 1/4 mile, especially 3-8 AM with rapid clearing over land around 8 AM, but closer to noon over the coastal waters. Fog could occur at San Diego & John Wayne Airports during these times. pic.twitter.com/LATgXnZjbG
— NWS San Diego (@NWSSanDiego) February 23, 2025
The marked temperature increase is expected to subside by Thursday, with greater onshore flow initiating cooling across the region. While the probability of significant rain seems low, a stronger low-pressure system anticipated to approach the West Coast by next weekend could increase the odds for wetter weather as we head into March. This could present a welcome change for an area that has seen temperatures soar well beyond the seasonal average, signaling a temporary respite from the unseasonable warmth.
