| National Weather Service Forecast for:
Sunnyvale CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 1:26 pm PDT Jun 29, 2026 | ||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 57. North wind around 6 mph becoming calm after midnight. |
| Tuesday |
Sunny, with a high near 81. Calm wind becoming west northwest 5 to 9 mph in the afternoon. |
| Tuesday Night |
Increasing clouds, with a low around 56. West northwest wind 5 to 8 mph becoming south after midnight. |
| Wednesday |
Partly sunny, then gradually becoming sunny, with a high near 77. South wind 5 to 7 mph becoming west southwest in the afternoon. |
| Wednesday Night |
Partly cloudy, with a low around 55. South southwest wind 7 to 9 mph. |
| Thursday |
Mostly sunny, with a high near 75. |
| Thursday Night |
Partly cloudy, with a low around 55. |
| Friday |
Mostly sunny, with a high near 78. |
| Friday Night |
Mostly clear, with a low around 57. |
| Independence Day |
Mostly sunny, with a high near 80. |
| Saturday Night |
Partly cloudy, with a low around 57. |
| Sunday |
Mostly sunny, with a high near 78. |
| Sunday Night |
Partly cloudy, with a low around 57. |
| Monday |
Mostly sunny, with a high near 76. |
Forecast from NOAA-NWS for Sunnyvale CA.
