Outdoor conditions in

San Marcos

California

Current concerns

Outdoor planning

Now
  1. 86°Sunny0% rain26% humidityGusts 8 mph
  2. 87°Sunny0% rain26% humidityGusts 6 mph
  3. 88°Sunny0% rain25% humidityGusts 6 mph
  4. 86°Sunny0% rain26% humidityGusts 6 mph
  5. 85°Sunny0% rain29% humidityGusts 6 mph
  6. 81°Clear0% rain33% humidityGusts 7 mph
  7. 76°Clear0% rain37% humidityGusts 8 mph
  8. 73°Clear0% rain38% humidityGusts 9 mph
  9. 71°Clear0% rain39% humidityGusts 8 mph
  10. 70°Clear0% rain41% humidityGusts 7 mph
  11. 68°Clear0% rain43% humidityGusts 7 mph
  12. 68°Clear0% rain44% humidityGusts 10 mph
  13. 67°Clear0% rain46% humidityGusts 15 mph
  14. 67°Mostly Clear0% rain47% humidityGusts 18 mph
  15. 67°Mostly Clear0% rain48% humidityGusts 17 mph
  16. 67°Mostly Clear0% rain48% humidityGusts 15 mph
  17. 66°Mostly Clear0% rain50% humidityGusts 13 mph
  18. 66°Sunny0% rain53% humidityGusts 14 mph
  19. 67°Sunny0% rain54% humidityGusts 17 mph
  20. 69°Sunny0% rain52% humidityGusts 23 mph
  21. 76°Sunny0% rain43% humidityGusts 32 mph
  22. 83°Sunny0% rain35% humidityGusts 43 mph
  23. 87°Sunny1% rain29% humidityGusts 51 mph
  24. 89°Sunny1% rain26% humidityGusts 52 mph

No suitable complete window was found within these hours. Try a shorter visit or a wider search.

Extra care for

A little farther out

The next five days

Today

Today looks fairly quiet.

Rain
0%
Humidity
25–43%
Wind
13 mph
Fri

Friday looks breezy.

Rain
1%
Humidity
25–54%
Wind
52 mph
Sat

Saturday looks breezy.

Rain
0%
Humidity
23–38%
Wind
33 mph
Sun

Sunday looks fairly quiet.

Rain
1%
Humidity
27–57%
Wind
16 mph
Mon

Monday looks fairly quiet.

Rain
3%
Humidity
38–81%
Wind
17 mph
  1. 88° / 68°Today looks fairly quiet.0% rain · Humidity 25–43% · Wind 13 mph
  2. 90° / 66°Friday looks breezy.1% rain · Humidity 25–54% · Wind 52 mph
  3. 86° / 70°Saturday looks breezy.0% rain · Humidity 23–38% · Wind 33 mph
  4. 87° / 65°Sunday looks fairly quiet.1% rain · Humidity 27–57% · Wind 16 mph
  5. 83° / 64°Monday looks fairly quiet.3% rain · Humidity 38–81% · Wind 17 mph

Environmental watch

Air quality + smoke

Air quality

San Diego Mesa and Inland Valley area · Updated Thu 1:26 PM
17GoodUS AQI

Good through Fri 12 PM.

Sky check

No plume detected overhead

Satellite view · Updated Thu 11:45 AM

Air near ground17 · Good US AQI

Rain, in motion · Past four hours

San Marcos radar

An active official alert is in effect. Its affected area is described above the briefing.

Radar animation for San Marcos, covering the past four hours. A marked spot changes the map view, not the forecast on this page.

Outdoor fire check

Thinking about a backyard fire?

Use extra caution.

There is no lower-concern three-hour stretch in the next 12 hours.

Next 12 hoursChoose a time to see what is driving the concern.
Selected timeNowUse caution

Humidity is 26%.

Humidity
26%
Wind
5 mph
Gusts
8 mph

Check local rules. Weather is only part of the decision. Check city, county, and land-manager fire restrictions before lighting any outdoor fire.

Nearby regional view

Explore San Diego

About 21 miles away, the San Diego hub looks more deeply at San Diego, CA. It reflects that wider area rather than San Marcos’s exact conditions.

About these readingsSources and local limits

Weather

Forecasts, alerts, and radar come from NOAA and the National Weather Service.

Air quality

This reading describes San Diego Mesa and Inland Valley area, about 21 miles away. Conditions can differ at this exact spot.

Smoke

Satellite imagery shows smoke overhead. It cannot tell us how much smoke has reached breathing level.

This page represents San Marcos, CA, so conditions can vary from street to street. Environmental data: AirNow · participating air agencies · preliminary real-time US AQI · NOAA Hazard Mapping System · satellite-observed smoke.