| NWS Forecast for: San Martin CA Issued by: National Weather Service San Francisco Bay Area/Monterey, CA Last Update: 1:26 pm PDT Aug 18, 2026 |  |
| Tonight: Increasing clouds, with a low around 57. Light and variable wind. Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 90. Calm wind becoming west 5 to 7 mph in the afternoon. Wednesday Night: Partly cloudy, with a low around 57. South southwest wind around 5 mph becoming calm in the evening. Thursday: Partly sunny, with a high near 89. Calm wind becoming west southwest around 6 mph in the afternoon. Thursday Night: Mostly cloudy, with a low around 58. West northwest wind 5 to 8 mph. Friday: Partly sunny, with a high near 88. Friday Night: Partly cloudy, with a low around 57. Saturday: Sunny, with a high near 87. Saturday Night: Mostly clear, with a low around 56. Sunday: Mostly sunny, with a high near 85. Sunday Night: Patchy fog. Otherwise, mostly clear, with a low around 55. Monday: Patchy fog. Otherwise, mostly sunny, with a high near 83. Monday Night: Patchy fog. Otherwise, partly cloudy, with a low around 55. Tuesday: Patchy fog. Otherwise, mostly sunny, with a high near 84. | |
| San Martin CA 37.08°N 121.6°W (Elev. 276 ft) | |
Visit your local NWS office at: https://www.weather.gov/mtr |
