Sunnyvale, TX Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Sunnyvale, TX in one place.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
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: Apr 20, 2026 2:06 AM CDT.
The active forecast window currently covers Apr 22 to Apr 26, 2026 for Sunnyvale, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 2:06 AM CDT
- Forecast office
- FWD
- Source
- NOAA / NWS
Daily Outlook
This Week in Sunnyvale
Friday looks like the warmest upcoming period in Sunnyvale at 85 degrees F.
Saturday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Thursday at about 10 to 15 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 2:06 AM CDT
- Coverage
- 5 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
A slight chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 65. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
77°F |
5 to 10 mph
SSE
|
|
Wednesday Night
Apr 22
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
65°F |
10 mph
SSE
|
|
Thursday
Apr 23
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
80°F |
10 to 15 mph
S
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms
|
68°F |
15 mph
S
|
|
Friday
Apr 24
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
85°F |
10 to 15 mph
SSW
|
|
Friday Night
Apr 24
|
Slight Chance Showers And Thunderstorms
|
62°F |
5 to 10 mph
SSE
|
|
Saturday
Apr 25
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
81°F |
5 to 10 mph
S
|
|
Saturday Night
Apr 25
|
Chance Showers And Thunderstorms
|
61°F |
5 to 10 mph
SSE
|
|
Sunday
Apr 26
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
79°F |
10 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sunnyvale.