Local Forecast

San Marcos, CA Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for San Marcos, CA.

No Active Alerts

Hour-by-Hour  Current Observation

Tuesday 2:40 PM PDTTuesday 2:40 PM

°F °C
Regional Observations →
71°F

Clear

  • 77° / 62° High / Low
  • 71° Feels Like
  • 0% Chance of Rain

Wind

10 mph

WSW

UV Index

11

Extreme

Humidity

65%

Dew 59°F

Sun

5:39 AM · 7:56 PM

Rise · Set

Source: OCEANSIDE (KOKB). Slider scrubs the next 12 hours.

5-Day Outlook

Through Saturday

Local Radar →

Today

77° 62°

Overnight Fog

Overnight: Forecast Missing

Detailed forecast

Today

Mostly sunny, with a high near 76. Southwest wind 0 to 10 mph.

Night

Patchy fog after 5am. Mostly clear, with a low around 61. Southwest wind 0 to 5 mph.

Wednesday

80° 62°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Wednesday

Patchy fog before 11am. Sunny, with a high near 80. Northwest wind 0 to 10 mph.

Night

Patchy fog after 11pm. Partly cloudy, with a low around 61. Southwest wind 0 to 5 mph.

Thursday

77° 66°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Thursday

Patchy fog before 11am. Mostly sunny, with a high near 77.

Night

Patchy fog after 11pm. Mostly cloudy, with a low around 63.

Friday

82° 68°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Friday

Patchy fog before 11am. Mostly sunny, with a high near 80.

Night

Partly cloudy, with a low around 64.

Saturday

82° 64°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Saturday

Sunny, with a high near 79.

Night

Partly cloudy, with a low around 64.

San Marcos, CA Weather Analysis Tools