San Martin 7 Day Weather Forecast with Current Weather Conditions for , CA." />

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San Martin, California 7 Day Weather Forecast

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NWS Forecast for San Martin CA

National Weather Service Forecast for: San Martin CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA

Updated: 12:27 pm PST Dec 18, 2025

This Afternoon Sunny	Tonight Fog	Friday Chance Rain and Fog then Rain Likely	Friday Night Rain Likely and Fog	Saturday Chance Rain and Fog	Saturday Night Rain Likely	Sunday Rain	Sunday Night Rain Likely	Monday Rain
Hi 65 °F	Lo 46 °F	Hi 61 °F	Lo 52 °F	Hi 60 °F	Lo 54 °F	Hi 60 °F	Lo 53 °F	Hi 59 °F

This Afternoon	Sunny, with a high near 65. Light northwest wind.
Tonight	Widespread fog, mainly after 2am. Otherwise, increasing clouds, with a low around 46. Calm wind.
Friday	Rain likely, mainly after 4pm. Widespread fog, mainly before 10am. Otherwise, mostly cloudy, with a high near 61. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%.
Friday Night	Rain likely, mainly before 10pm. Widespread fog, mainly after 4am. Otherwise, cloudy, with a low around 52. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday	A 40 percent chance of rain. Widespread fog, mainly before 10am. Otherwise, cloudy, with a high near 60. Light south wind. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night	Rain likely. Cloudy, with a low around 54. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday	Rain. High near 60. Chance of precipitation is 80%.
Sunday Night	Rain likely. Cloudy, with a low around 53.
Monday	Rain. Cloudy, with a high near 59.
Monday Night	Rain. Cloudy, with a low around 50.
Tuesday	Rain likely. Cloudy, with a high near 58.
Tuesday Night	Rain. Cloudy, with a low around 48.
Wednesday	Rain. Cloudy, with a high near 57.

Forecast from NOAA-NWS for San Martin CA.

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