| National Weather Service Forecast for:
San Martin CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA |
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| Updated: 1:26 am PDT Aug 20, 2026 | ||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 58. Calm wind. |
| Thursday |
Partly sunny, with a high near 89. Calm wind becoming northwest 5 to 7 mph in the afternoon. |
| Thursday Night |
Partly cloudy, with a low around 58. Northwest wind 3 to 6 mph. |
| Friday |
Partly sunny, with a high near 87. West wind 3 to 7 mph. |
| Friday Night |
Mostly clear, with a low around 56. West northwest wind around 7 mph. |
| Saturday |
Sunny, with a high near 89. |
| Saturday Night |
Mostly clear, with a low around 57. |
| Sunday |
Mostly sunny, with a high near 87. |
| Sunday Night |
Partly cloudy, with a low around 57. |
| Monday |
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. |
| Monday Night |
Partly cloudy, with a low around 56. |
| Tuesday |
Patchy fog. Otherwise, mostly sunny, with a high near 86. |
| Tuesday Night |
Partly cloudy, with a low around 57. |
| Wednesday |
Mostly sunny, with a high near 88. |
Forecast from NOAA-NWS for San Martin CA.
