Sunnyvale, CA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sunnyvale, CA in one place.
Mostly sunny, with a high near 69.
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: May 25, 2026 9:11 PM PDT.
The active forecast window currently covers May 28 to Jun 1, 2026 for Sunnyvale, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 28 to Jun 1, 2026
- Latest sync
- May 25, 2026 9:11 PM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Sunnyvale
Monday looks like the warmest upcoming period in Sunnyvale at 79 degrees F.
Saturday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Thursday at about 7 to 12 mph SW.
The forecast from May 28 through Jun 1 stays mostly dry.
Forecast Details
- Last updated
- May 25, 2026 9:11 PM 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 51.
Mostly sunny, with a high near 69.
Mostly clear, with a low around 50.
Sunny, with a high near 72.
Mostly clear, with a low around 49.
Sunny, with a high near 76.
Mostly clear, with a low around 50.
Sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
May 28
|
Mostly Sunny
|
69°F |
7 to 12 mph
SW
|
|
Thursday Night
May 28
|
Partly Cloudy
|
51°F |
12 mph
SW
|
|
Friday
May 29
|
Mostly Sunny
|
69°F |
9 mph
SW
|
|
Friday Night
May 29
|
Mostly Clear
|
50°F |
7 to 10 mph
SW
|
|
Saturday
May 30
|
Sunny
|
72°F |
7 to 10 mph
SW
|
|
Saturday Night
May 30
|
Mostly Clear
|
49°F |
7 to 10 mph
SW
|
|
Sunday
May 31
|
Sunny
|
76°F |
5 to 8 mph
SW
|
|
Sunday Night
May 31
|
Mostly Clear
|
50°F |
5 to 8 mph
SW
|
|
Monday
Jun 1
|
Sunny
|
79°F |
5 to 8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sunnyvale.
