| National Weather Service Forecast for:
Sunnyvale CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 11:26 am PDT Apr 6, 2026 | ||||||||||||||||||
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| This Afternoon |
Sunny, with a high near 74. North northwest wind 6 to 9 mph. |
| Tonight |
Partly cloudy, with a low around 47. North northwest wind 5 to 8 mph becoming calm in the evening. |
| Tuesday |
Partly sunny, then gradually becoming sunny, with a high near 73. Calm wind becoming north northwest 5 to 9 mph in the afternoon. |
| Tuesday Night |
Mostly clear, with a low around 50. Northwest wind 5 to 8 mph becoming calm in the evening. |
| Wednesday |
Sunny, with a high near 76. Calm wind becoming west northwest 5 to 8 mph in the afternoon. |
| Wednesday Night |
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 54. |
| Thursday |
A 20 percent chance of rain after 11am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 73. |
| Thursday Night |
A chance of rain. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 52. |
| Friday |
A chance of rain before 11am, then a chance of showers and thunderstorms after 11am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 71. |
| Friday Night |
A chance of rain. Mostly cloudy, with a low around 51. |
| Saturday |
A chance of rain. Partly sunny, with a high near 68. |
| Saturday Night |
A chance of rain. Mostly cloudy, with a low around 47. |
| Sunday |
A chance of rain. Mostly sunny, with a high near 65. |
Forecast from NOAA-NWS for Sunnyvale CA.
