Sunnyvale, TX Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sunnyvale, TX in one place.
Sunny, with a high near 90. Heat index values as high as 98. South wind around 10 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Sunnyvale, TX 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: Jun 9, 2026 3:45 PM CDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Sunnyvale, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 3:45 PM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Sunnyvale
Saturday looks like the warmest upcoming period in Sunnyvale at 97 degrees F.
Monday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Wednesday at about 10 to 15 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 3:45 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- FWD
- Radar station
- KFWS
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 76. South wind around 10 mph.
Partly sunny, with a high near 91. Heat index values as high as 99. South wind 10 to 15 mph, with gusts as high as 25 mph.
Partly cloudy, with a low around 76. Heat index values as high as 98. South wind 10 to 15 mph, with gusts as high as 25 mph.
Partly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.
A slight chance of rain showers between 1am and 4am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. South wind around 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77. South southeast wind around 5 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 97. South wind 5 to 10 mph.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 9
|
Sunny
|
90°F |
10 mph
S
|
|
Tonight
Jun 9
|
Mostly Clear
|
76°F |
10 mph
S
|
|
Wednesday
Jun 10
|
Partly Sunny
|
91°F |
10 to 15 mph
S
|
|
Wednesday Night
Jun 10
|
Partly Cloudy
|
76°F |
10 to 15 mph
S
|
|
Thursday
Jun 11
|
Partly Sunny
|
93°F |
10 to 15 mph
S
|
|
Thursday Night
Jun 11
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
78°F |
5 to 10 mph
S
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms
|
94°F |
5 mph
S
|
|
Friday Night
Jun 12
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
77°F |
5 mph
SSE
|
|
Saturday
Jun 13
|
Mostly Sunny
|
97°F |
5 to 10 mph
S
|
|
Saturday Night
Jun 13
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
78°F |
10 mph
S
|
|
Sunday
Jun 14
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
95°F |
10 mph
S
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
75°F |
10 mph
S
|
|
Monday
Jun 15
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
WNW
|
|
Monday Night
Jun 15
|
Chance Showers And Thunderstorms
|
71°F |
5 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sunnyvale.