Santa Clara County, CA Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Santa Clara County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear, with a low around 44. South southwest wind around 2 mph.
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
- Apr 23 to Apr 29, 2026
- Latest sync
- Apr 23, 2026 4:36 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Santa Clara County
Thursday looks like the warmest upcoming period in Santa Clara County at 71 degrees F.
Overnight is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 14 mph WSW.
The forecast from Apr 23 through Apr 29 stays mostly dry.
Forecast Details
- Last updated
- Apr 23, 2026 4:36 AM PDT
- Coverage
- 7 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
Patchy fog between 7am and 8am. Sunny. High near 71, with temperatures falling to around 69 in the afternoon. West northwest wind 2 to 9 mph.
Partly cloudy. Low around 46, with temperatures rising to around 48 overnight. West southwest wind 3 to 8 mph.
Partly sunny, with a high near 68. West southwest wind 3 to 10 mph, with gusts as high as 18 mph.
Partly cloudy, with a low around 47. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Partly sunny, with a high near 65.
Mostly cloudy, with a low around 46.
Mostly sunny, with a high near 66.
Mostly clear, with a low around 44.
Mostly sunny, with a high near 68.
Partly cloudy, with a low around 46.
Mostly sunny, with a high near 71.
Partly cloudy, with a low around 48.
Mostly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 23
|
Mostly Clear
|
44°F |
2 mph
SSW
|
|
Thursday
Apr 23
|
Patchy Fog then Sunny
|
71°F |
2 to 9 mph
WNW
|
|
Thursday Night
Apr 23
|
Partly Cloudy
|
46°F |
3 to 8 mph
WSW
|
|
Friday
Apr 24
|
Partly Sunny
|
68°F |
3 to 10 mph
WSW
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
47°F |
5 to 10 mph
WSW
|
|
Saturday
Apr 25
|
Partly Sunny
|
65°F |
5 to 10 mph
WSW
|
|
Saturday Night
Apr 25
|
Mostly Cloudy
|
46°F |
5 to 10 mph
SW
|
|
Sunday
Apr 26
|
Mostly Sunny
|
66°F |
5 to 12 mph
SW
|
|
Sunday Night
Apr 26
|
Mostly Clear
|
44°F |
2 to 12 mph
SW
|
|
Monday
Apr 27
|
Mostly Sunny
|
68°F |
2 to 9 mph
WSW
|
|
Monday Night
Apr 27
|
Partly Cloudy
|
46°F |
2 to 9 mph
WSW
|
|
Tuesday
Apr 28
|
Mostly Sunny
|
71°F |
2 to 12 mph
WSW
|
|
Tuesday Night
Apr 28
|
Partly Cloudy
|
48°F |
5 to 12 mph
WSW
|
|
Wednesday
Apr 29
|
Mostly Sunny
|
70°F |
5 to 14 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.
