California – Clear skies fade into pockets of fog along the coast this morning, softening streetlights and blurring the skyline. The air feels cool at first, but warmth builds quickly once the sun climbs. This is winter in name only for San Diego.
According to the National Weather Service, skies stay mostly clear today with highs climbing into the mid-70s. Light winds keep conditions calm, though visibility may drop briefly near the coast during early hours. Inland areas warm faster under full sunshine.
Across Southern California, a strong ridge keeps temperatures well above average through midweek. Afternoon highs push into the upper 70s by Wednesday and Thursday, more typical of late spring than January 2026. No rain is expected, but marine-layer fog remains a daily concern.
In San Diego, tonight stays clear with lows near the low 50s. Wednesday brings another warm, sunny afternoon near 76. Fog may redevelop late at night and linger into early Thursday, especially near I-5, coastal highways, and low-lying neighborhoods.
Drivers should plan extra time during the morning commute. Patchy fog can reduce visibility quickly, particularly before 10 a.m. Conditions improve fast once the sun breaks through. For now, wet roads and winter hazards stay out of the picture.
By Thursday and Friday, the pattern holds steady. Highs reach the upper 70s, while nights remain mild. Morning fog continues to be the main disruption. By the end of January, daylight increases noticeably, adding nearly 40 extra minutes by month’s end.
No weather alerts are posted, but fog can still surprise. Heading out early this week? Let us know where fog slowed you down.
Five Day Outlook for San Diego, CA
Today: Sunny, warm, high near 75
Wednesday: Sunny, warmer, high near 76
Thursday: Sunny, patchy morning fog, high near 77
Friday: Fog early, then sunny, high near 76
Saturday: Mostly sunny, warm, high near 77
