NWS Forecast Office San Diego, CA

Click a location below for detailed forecast.

Last Map Update: Wed, Jan 15, 2025 at 4:13:02 pm PST

Watches, Warnings & Advisories

National Weather Service Los Angeles, CA

National Weather Service San Joaquin Valley, CA

Zoom Out

National Weather Service NWS Flagstaff, AZ

Red Flag Warning

Wind Advisory

Air Quality Alert

Santa Ana Winds

Cold AM Temperatures

Highs Thursday

Low Humidity Thursday

Onshore Flow Returns Friday

Red Flag Warning will expire by 6 PM for all areas. We are currently still registering E/NE 15-25 mph winds with gusts 25-35 mph for areas in the Red Flag Warning. Peak gusts continue to register up to 55-60 mph for windiest passes and canyons in the Inland Empire. Winds are expected to weaken this evening with peak gusts reducing to 30-35 mph for windiest areas, and down to a light drainage flow for all other areas.

Map of forecast low temperatures for Thursday through Saturday mornings, Jan 16-18, 2025. With the current dry airmass in place, effective radiational cooling will allow temperatures to drop into the upper 20 and lower 30s for wind sheltered valleys in San Diego and Riverside Counties Thursday morning. Temperatures will be slightly milder Friday morning for most San Diego County valleys but will still drop near freezing for areas of the Inland Empire in Riverside County.

Cooler for most areas as onshore winds pick up in the afternoon. Temperatures mainly near average.

Humidity remains low after Santa Ana winds weaken throughout the region, with values down to 11-15%. Humidity will increase quickly Thursday afternoon as onshore flow returns.

Humidity recovers significantly as onshore winds increase humidity.

Text Product Selector (Selected product opens in current window)