Weather forecast for: San Marcos CA
Last Update: 12:07 am PDT Aug 14, 2026
Today: Mostly cloudy, then gradually becoming sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 64. West wind around 5 mph becoming calm in the evening.
Saturday: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light northwest wind becoming west 5 to 10 mph in the morning.
Saturday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 64. West wind around 5 mph becoming calm in the evening.
Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. Light northwest wind becoming west 5 to 10 mph in the morning.
Sunday Night: Mostly clear, with a low around 64.
Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 82.
Monday Night: Mostly clear, with a low around 65.
Tuesday: Mostly sunny, with a high near 84.
Tuesday Night: Mostly clear, with a low around 66.
Wednesday: Mostly sunny, with a high near 84.
Wednesday Night: Mostly clear, with a low around 66.
Thursday: Sunny, with a high near 84.
WeatherWorld.com
City of San Marcos, CA
