Outdoor conditions in

San Geronimo

California
Air qualityAir quality is moderate at the official reporting area.Air near ground level
Now
  1. 82°Sunny0% rain32% humidityGusts 10 mph
  2. 84°Sunny0% rain29% humidityGusts 10 mph
  3. 85°Sunny0% rain28% humidityGusts 12 mph
  4. 85°Sunny0% rain28% humidityGusts 12 mph
  5. 83°Sunny0% rain28% humidityGusts 10 mph
  6. 78°Clear0% rain34% humidityGusts 10 mph
  7. 73°Clear0% rain42% humidityGusts 12 mph
  8. 65°Clear0% rain46% humidityGusts 9 mph
  9. 64°Clear0% rain46% humidityGusts 7 mph
  10. 64°Clear0% rain46% humidityGusts 7 mph
  11. 64°Clear0% rain46% humidityGusts 7 mph
  12. 64°Clear0% rain45% humidityGusts 6 mph
  13. 64°Clear0% rain43% humidityGusts 6 mph
  14. 62°Clear0% rain44% humidityGusts 6 mph
  15. 62°Clear0% rain43% humidityGusts 7 mph
  16. 62°Clear0% rain42% humidityGusts 7 mph
  17. 62°Clear0% rain41% humidityGusts 8 mph
  18. 62°Sunny0% rain39% humidityGusts 9 mph
  19. 62°Sunny0% rain40% humidityGusts 9 mph
  20. 62°Sunny0% rain40% humidityGusts 9 mph
  21. 68°Sunny0% rain37% humidityGusts 10 mph
  22. 74°Sunny0% rain31% humidityGusts 9 mph
  23. 79°Sunny0% rain26% humidityGusts 10 mph
  24. 84°Sunny0% rain23% humidityGusts 9 mph
Extra care for

A little farther out

The next five days

Today

Today looks fairly quiet.

Rain
0%
Humidity
28–46%
Wind
12 mph
Fri

Friday looks fairly quiet.

Rain
0%
Humidity
21–45%
Wind
12 mph
Sat

Saturday looks fairly quiet.

Rain
0%
Humidity
28–70%
Wind
12 mph
Sun

Sunday looks breezy.

Rain
0%
Humidity
60–100%
Wind
25 mph
Mon

Monday looks breezy.

Rain
24%
Humidity
66–98%
Wind
25 mph
  1. 85° / 64°Today looks fairly quiet.0% rain · Humidity 28–46% · Wind 12 mph
  2. 90° / 62°Friday looks fairly quiet.0% rain · Humidity 21–45% · Wind 12 mph
  3. 86° / 59°Saturday looks fairly quiet.0% rain · Humidity 28–70% · Wind 12 mph
  4. 69° / 50°Sunday looks breezy.0% rain · Humidity 60–100% · Wind 25 mph
  5. 60° / 48°Monday looks breezy.24% rain · Humidity 66–98% · Wind 25 mph

Environmental watch

Air quality + smoke

Air quality

San Rafael area · Updated Thu 1:26 PM
53ModerateUS AQI

Moderate now, easing to Good through Fri 12 PM.

53 is in the Moderate range (51–100). Most people can be active outside; if you’re unusually sensitive to fine particles, consider a shorter or easier outing.

Sky check

No plume detected overhead

Satellite view · Updated Thu 11:45 AM

Air near ground53 · Moderate US AQI

Rain, in motion · Past four hours

San Geronimo radar

Ready when you areSee what is moving toward San Geronimo.

Watch the last four hours of rain, then search any nearby trail, lake, or address.

View the official forecast ↗

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 32%.

Humidity
32%
Wind
5 mph
Gusts
10 mph

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

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 Rafael area, about 8 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 Geronimo, 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.