Santa Clara County, CA Weather Forecast
County weather hub
Sunny
Compare major city weather across Santa Clara County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 92.
County Weather Overview
This county weather page brings together forecast coverage for Santa Clara County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 16 of 16 mapped cities in Santa Clara County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Sep 23 to Sep 24, 2026
- Latest sync
- Sep 18, 2026 10:23 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Santa Clara County
Wednesday looks like the warmest upcoming period in Santa Clara County at 92 degrees F.
Thursday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Thursday at about 0 to 9 mph WSW.
The forecast from Sep 23 through Sep 24 stays mostly dry.
Forecast Details
- Last updated
- Sep 18, 2026 10:23 AM PDT
- Coverage
- 3 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KMUX
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 61.
Sunny, with a high near 91.
Partly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Sunny
|
92°F |
0 to 7 mph
W
|
|
Wednesday Night
Sep 23
|
Mostly Clear
|
61°F |
0 to 7 mph
SW
|
|
Thursday
Sep 24
|
Sunny
|
91°F |
0 to 9 mph
WSW
|
|
Thursday Night
Sep 24
|
Partly Cloudy
|
60°F |
2 to 9 mph
WSW
|
Major City Forecasts
Live forecast snapshots for major cities across Santa Clara County.
Coverage
Forecast coverage currently spans 16 of 16 mapped cities in Santa Clara County.
Largest mapped city population in this region: 1,013,616.
