San Diego County, CA Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across San Diego County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 70.
County Weather Overview
This county weather page brings together forecast coverage for San Diego County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 21 of 22 mapped cities in San Diego County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 23, 2026
- Latest sync
- Apr 16, 2026 11:49 PM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in San Diego County
Thursday looks like the warmest upcoming period in San Diego County at 70 degrees F.
Thursday is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Thursday at about 5 to 10 mph W.
The forecast from Apr 23 through Apr 23 stays mostly dry.
Forecast Details
- Last updated
- Apr 16, 2026 11:49 PM PDT
- Coverage
- 1 day
- Time zone
- America/Los_Angeles
- Forecast office
- SGX
- Radar station
- KNKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Mostly Sunny
|
70°F |
5 to 10 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across San Diego County.
Coverage
Forecast coverage currently spans 21 of 22 mapped cities in San Diego County.
Largest mapped city population in this region: 1,422,420.
