Outdoor conditions in

Hercules

California
Now
  1. 62°Sunny0% rain66% humidityGusts 16 mph
  2. 64°Sunny0% rain62% humidityGusts 13 mph
  3. 68°Sunny0% rain59% humidityGusts 10 mph
  4. 71°Sunny0% rain52% humidityGusts 8 mph
  5. 73°Sunny0% rain48% humidityGusts 7 mph
  6. 74°Sunny0% rain44% humidityGusts 7 mph
  7. 74°Sunny0% rain39% humidityGusts 5 mph
  8. 73°Clear0% rain43% humidityGusts 5 mph
  9. 70°Clear0% rain50% humidityGusts 5 mph
  10. 66°Clear0% rain54% humidityGusts 5 mph
  11. 65°Clear0% rain56% humidityGusts 3 mph
  12. 64°Clear0% rain56% humidityGusts 3 mph
  13. 63°Clear0% rain56% humidityGusts 2 mph
  14. 62°Clear0% rain56% humidityGusts 2 mph
  15. 62°Clear0% rain56% humidityGusts 2 mph
  16. 61°Clear0% rain56% humidityGusts 2 mph
  17. 61°Clear0% rain55% humidityGusts 6 mph
  18. 60°Clear0% rain53% humidityGusts 7 mph
  19. 60°Mostly Clear0% rain52% humidityGusts 9 mph
  20. 60°Sunny0% rain51% humidityGusts 9 mph
  21. 60°Sunny0% rain50% humidityGusts 9 mph
  22. 60°Sunny0% rain51% humidityGusts 14 mph
  23. 61°Sunny0% rain51% humidityGusts 14 mph
  24. 63°Sunny0% rain50% humidityGusts 14 mph
Extra care for

A little farther out

The next five days

Today

Today looks fairly quiet.

Rain
0%
Humidity
39–78%
Wind
16 mph
Fri

Friday looks fairly quiet.

Rain
0%
Humidity
33–56%
Wind
17 mph
Sat

Saturday looks fairly quiet.

Rain
0%
Humidity
44–78%
Wind
8 mph
Sun

Sunday looks fairly quiet.

Rain
0%
Humidity
70–100%
Wind
18 mph
Mon

Monday looks fairly quiet.

Rain
5%
Humidity
71–97%
Wind
23 mph
  1. 74° / 55°Today looks fairly quiet.0% rain · Humidity 39–78% · Wind 16 mph
  2. 76° / 60°Friday looks fairly quiet.0% rain · Humidity 33–56% · Wind 17 mph
  3. 75° / 58°Saturday looks fairly quiet.0% rain · Humidity 44–78% · Wind 8 mph
  4. 66° / 56°Sunday looks fairly quiet.0% rain · Humidity 70–100% · Wind 18 mph
  5. 63° / 53°Monday looks fairly quiet.5% rain · Humidity 71–97% · Wind 23 mph

Environmental watch

Air quality + smoke

Air quality

San Rafael area · Updated Thu 10:26 AM
35GoodUS AQI

Good through 12 PM.

Sky check

No plume detected overhead

Satellite view · Updated Thu 5:45 AM

Air near ground35 · Good US AQI

Rain, in motion · Past four hours

Hercules radar

Ready when you areSee what is moving toward Hercules.

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?

Weather is less concerning around 7 PM–10 PM.

Humidity stays higher and winds stay lighter for at least three hours.

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

Sustained wind is 9 mph. Gusts may reach 16 mph.

Humidity
66%
Wind
9 mph
Gusts
16 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 Concord

About 16 miles away, the Concord hub looks more deeply at Concord, CA. It reflects that wider area rather than Hercules’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 Rafael area, about 13 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 Hercules, 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.