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 73. North northwest wind 3 to 7 mph.
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: Oct 12, 2026 6:17 AM PDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Sunnyvale, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 6:17 AM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Sunnyvale
Friday looks like the warmest upcoming period in Sunnyvale at 90 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Thursday at about 0 to 8 mph NE.
The forecast from Oct 13 through Oct 18 stays mostly dry.
Forecast Details
- Last updated
- Oct 12, 2026 6:17 AM PDT
- Coverage
- 6 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
Clear, with a low around 49. Southwest wind 3 to 7 mph.
Sunny, with a high near 78.
Clear, with a low around 55.
Sunny, with a high near 88.
Clear, with a low around 59.
Sunny, with a high near 90.
Clear, with a low around 62.
Sunny, with a high near 90.
Mostly clear, with a low around 57.
Sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
73°F |
3 to 7 mph
NNW
|
|
Tuesday Night
Oct 13
|
Clear
|
49°F |
3 to 7 mph
SW
|
|
Wednesday
Oct 14
|
Sunny
|
78°F |
3 mph
WNW
|
|
Wednesday Night
Oct 14
|
Clear
|
55°F |
0 to 3 mph
WNW
|
|
Thursday
Oct 15
|
Sunny
|
88°F |
0 to 8 mph
NE
|
|
Thursday Night
Oct 15
|
Clear
|
59°F |
0 to 3 mph
N
|
|
Friday
Oct 16
|
Sunny
|
90°F |
3 to 7 mph
NNE
|
|
Friday Night
Oct 16
|
Clear
|
62°F |
0 to 3 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
90°F |
5 mph
N
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
57°F |
5 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
78°F |
3 to 7 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sunnyvale.
