San Joaquin County, CA Weather Forecast
County weather hub
Sunny
Compare major city weather across San Joaquin County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 95.
County Weather Overview
This county weather page brings together forecast coverage for San Joaquin County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 10 of 10 mapped cities in San Joaquin County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 16 to Jul 17, 2026
- Latest sync
- Jul 11, 2026 10:54 AM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in San Joaquin County
Thursday looks like the warmest upcoming period in San Joaquin County at 95 degrees F.
Thursday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Thursday at about 3 to 9 mph WNW.
The forecast from Jul 16 through Jul 17 stays mostly dry.
Forecast Details
- Last updated
- Jul 11, 2026 10:54 AM PDT
- Coverage
- 3 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- Radar station
- KDAX
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 62.
Sunny, with a high near 93.
Mostly clear, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Sunny
|
95°F |
3 to 9 mph
WNW
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
62°F |
3 to 9 mph
WNW
|
|
Friday
Jul 17
|
Sunny
|
93°F |
3 to 8 mph
WNW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
63°F |
3 to 8 mph
NW
|
Major City Forecasts
Live forecast snapshots for major cities across San Joaquin County.
Coverage
Forecast coverage currently spans 10 of 10 mapped cities in San Joaquin County.
Largest mapped city population in this region: 312,716.
