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 89.
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: Jul 12, 2026 5:32 AM PDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Sunnyvale, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 5:32 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Sunnyvale
Tuesday looks like the warmest upcoming period in Sunnyvale at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 9 mph SW.
The forecast from Jul 14 through Jul 18 stays mostly dry.
Forecast Details
- Last updated
- Jul 12, 2026 5:32 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
Mostly clear, with a low around 60.
Sunny, with a high near 86.
Mostly clear, with a low around 56.
Sunny, with a high near 81.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 80.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
89°F |
6 to 9 mph
SW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
60°F |
9 mph
SW
|
|
Wednesday
Jul 15
|
Sunny
|
86°F |
9 mph
SW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
56°F |
9 mph
SW
|
|
Thursday
Jul 16
|
Sunny
|
81°F |
9 mph
SW
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
56°F |
9 mph
SW
|
|
Friday
Jul 17
|
Mostly Sunny
|
80°F |
8 mph
SW
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
58°F |
8 mph
WSW
|
|
Saturday
Jul 18
|
Mostly Sunny
|
80°F |
8 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sunnyvale.
