San Diego County, CA Weather Forecast
County weather hub
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.
Sunny, with a high near 92. Northwest wind 0 to 10 mph.
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
- Sep 23 to Sep 29, 2026
- Latest sync
- Sep 22, 2026 9:42 PM PDT
- Forecast office
- SGX
- Source
- NOAA / NWS
Daily Outlook
This Week in San Diego County
Wednesday looks like the warmest upcoming period in San Diego County at 92 degrees F.
Sunday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Wednesday at about 0 to 10 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 22, 2026 9:42 PM PDT
- Coverage
- 7 days
- 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
Mostly clear, with a low around 66. North wind 0 to 5 mph.
A slight chance of rain showers between 11am and 5pm. Sunny, with a high near 91. East wind 0 to 10 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 66. North wind 0 to 5 mph.
Sunny, with a high near 91.
Partly cloudy, with a low around 66.
Partly sunny, with a high near 91.
Partly cloudy, with a low around 63.
Mostly sunny, with a high near 85.
A slight chance of rain showers after 11pm. Partly cloudy, with a low around 59.
A slight chance of rain showers. Mostly sunny, with a high near 83.
A slight chance of rain showers. Mostly clear, with a low around 59.
A slight chance of rain showers before 5pm. Sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Sunny
|
92°F |
0 to 10 mph
NW
|
|
Wednesday Night
Sep 23
|
Mostly Clear
|
66°F |
0 to 5 mph
N
|
|
Thursday
Sep 24
|
Slight Chance Rain Showers
|
91°F |
0 to 10 mph
E
|
|
Thursday Night
Sep 24
|
Mostly Clear
|
66°F |
0 to 5 mph
N
|
|
Friday
Sep 25
|
Sunny
|
91°F |
0 to 10 mph
W
|
|
Friday Night
Sep 25
|
Partly Cloudy
|
66°F |
0 to 5 mph
NE
|
|
Saturday
Sep 26
|
Partly Sunny
|
91°F |
0 to 10 mph
W
|
|
Saturday Night
Sep 26
|
Partly Cloudy
|
63°F |
0 to 10 mph
NE
|
|
Sunday
Sep 27
|
Mostly Sunny
|
85°F |
0 to 10 mph
SW
|
|
Sunday Night
Sep 27
|
Slight Chance Rain Showers
|
59°F |
0 to 10 mph
N
|
|
Monday
Sep 28
|
Slight Chance Rain Showers
|
83°F |
0 to 10 mph
SW
|
|
Monday Night
Sep 28
|
Slight Chance Rain Showers
|
59°F |
0 to 5 mph
N
|
|
Tuesday
Sep 29
|
Slight Chance Rain Showers
|
86°F |
0 to 5 mph
SW
|
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.
