Sunnyvale, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sunnyvale, CA in one place.
Sunny, with a high near 67.
Local Weather Overview
This forecast page for Sunnyvale, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 21, 2026 4:26 AM PDT.
The active forecast window currently covers Apr 23 to Apr 27, 2026 for Sunnyvale, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 4:26 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Sunnyvale
Friday looks like the warmest upcoming period in Sunnyvale at 68 degrees F.
Thursday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Saturday at about 7 to 12 mph WSW.
The forecast from Apr 23 through Apr 27 stays mostly dry.
Forecast Details
- Last updated
- Apr 21, 2026 4:26 AM PDT
- Coverage
- 5 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
Partly cloudy, with a low around 47.
Mostly sunny, with a high near 68.
Partly cloudy, with a low around 50.
Partly sunny, with a high near 64.
Mostly cloudy, with a low around 50.
Mostly sunny, with a high near 65.
Partly cloudy, with a low around 49.
Mostly sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Sunny
|
67°F |
3 to 9 mph
WNW
|
|
Thursday Night
Apr 23
|
Partly Cloudy
|
47°F |
5 to 9 mph
WSW
|
|
Friday
Apr 24
|
Mostly Sunny
|
68°F |
3 to 8 mph
SW
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
50°F |
9 mph
WSW
|
|
Saturday
Apr 25
|
Partly Sunny
|
64°F |
7 to 12 mph
WSW
|
|
Saturday Night
Apr 25
|
Mostly Cloudy
|
50°F |
8 to 12 mph
SW
|
|
Sunday
Apr 26
|
Mostly Sunny
|
65°F |
10 mph
SW
|
|
Sunday Night
Apr 26
|
Partly Cloudy
|
49°F |
6 to 10 mph
SW
|
|
Monday
Apr 27
|
Mostly Sunny
|
67°F |
6 to 9 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sunnyvale.
