Weather Forecast and Radar for San Marcos, California

Current & 7-day weather forecast, weather alerts, and weather radar for San Marcos, California.
All times shown in your local timezone

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Temperature Forecast for San Marcos, California

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Temperature Forecast for San Marcos, California

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Weather Radar for San Marcos, California

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Weather in San Marcos, CA

San Marcos, California has a mild climate year-round. Summers are usually hot and dry, with temperatures averaging in the upper 80s (Fahrenheit). Evening temperatures cool to the mid-50s, making for pleasant nights. Winters are mild with temperatures in the mid-50s during the day and cooling to the low 40s at night. Rain is scarce, but when it does come, it usually falls between December and March. Spring and fall are both mild and pleasant, with temperatures in the mid-60s during the day and cooling to the mid-40s at night.

Fast Facts About San Marcos, CA

As of 2020, the city population is 96219.

Major Cities Nearby San Marcos, CA

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for San Marcos, California.