Wind
3 mph
NW
Local Forecast
Current conditions, 5-day forecast, active weather alerts for San Marcos, CA
Get Alerts No Active Alerts
Hour-by-Hour Current Observation
Clear
Wind
3 mph
NW
UV Index
0
None
Humidity
78%
Dew 62°F
Sun
6:10 AM · 7:36 PM
Rise · Set
Source: OCEANSIDE (KOKB). Slider scrubs the next 12 hours.
5-Day Outlook
Friday
Overnight Fog
Overnight: Forecast Missing
Friday
Patchy fog before 8am. Mostly sunny, with a high near 79. Southwest wind 0 to 10 mph.
Night
Patchy fog after 11pm. Mostly cloudy, with a low around 64. Northwest wind 0 to 5 mph.
Saturday
Forecast Missing
Overnight: Forecast Missing
Saturday
Patchy fog before 11am. Mostly sunny, with a high near 80. West wind 0 to 10 mph.
Night
Patchy fog between 11pm and 5am. Mostly cloudy, with a low around 65.
Sunday
Forecast Missing
Overnight: Forecast Missing
Sunday
Mostly sunny, with a high near 81.
Night
Partly cloudy, with a low around 65.
Monday
Forecast Missing
Overnight: Forecast Missing
Monday
Mostly sunny, with a high near 82.
Night
Partly cloudy, with a low around 65.
Tuesday
Forecast Missing
Overnight: Forecast Missing
Tuesday
Sunny, with a high near 83.
Night
Mostly clear, with a low around 66.
San Marcos, CA Weather Analysis Tools
Regional Radar
Composite reflectivity with Lightning overlay.
Regional Observations
Regional & historic weather conditions near San Marcos, CA.
Active Alerts
Per-location alert detail and NWS source feeds.
Storm Reports
Recent storm reports including wind, hail, and tornadoes.
Model Analysis
Interactive forecast model guidance.
Satellite Imagery
GOES-East and GOES-West, visible and infrared.