California – A cool marine haze drifts across runways near San Diego International as headlights glow through thin fog. The air feels calm and damp, signaling another quiet but changing weather pattern along the Southern California coast.
According to the National Weather Service, patchy fog develops late nights and early mornings through early week, especially near the coast and inland valleys. Visibility may briefly drop during the morning commute, including along I-5, I-8, and surface streets near the bay. Drivers should slow down and allow extra travel time where fog thickens.
Daytime conditions stay comfortable. Highs reach the low 70s Sunday, then hover in the mid-70s Monday and Tuesday. By Wednesday, temperatures push toward 80 degrees under mostly sunny skies. Winds remain light, offering little relief from morning haze but keeping afternoons pleasant.
Nighttime fog becomes more persistent late Sunday into Tuesday morning. Some areas may see fog linger past midmorning before clearing. Beaches and coastal neighborhoods feel cooler, while inland areas warm faster by afternoon.
Nationally, weather contrasts are sharp. Nearly half of the Great Lakes remain frozen as Arctic air locks in across the Midwest and East. That cold supports winter storms and icy travel along the I-95 corridor into the first week of February. While San Diego avoids winter hazards, the larger pattern keeps California dry and mild.
Looking ahead, precipitation chances stay low through the workweek. The 6–10 day outlook favors near-normal rainfall for Southern California, with warmer-than-average temperatures possible as February continues. That means more fog-prone mornings but steady afternoon sunshine.
For now, keep headlights on in fog, watch for slick spots from overnight moisture, and plan outdoor activities for later in the day.
Seeing fog where you are this morning, or did it clear quickly?
Five Day Outlook for San Diego, California
- Monday: Patchy morning fog, high near 70°F
- Tuesday: Morning fog then sunny, high near 74°F
- Wednesday: Sunny, high near 80°F
- Thursday: Mostly sunny, high near 77°F
- Friday: Mostly sunny, high near 73°F
