Outdoor conditions in

Ontario

California
Wind AdvisoryWind Advisory issued October 15 at 8:12AM PDT until October 16 at 11:00AM PDT by NWS Las Vegas NVOfficial NWS alert
Now
  1. 83°Sunny0% rain23% humidityGusts 32 mph
  2. 84°Sunny0% rain22% humidityGusts 30 mph
  3. 86°Sunny0% rain21% humidityGusts 29 mph
  4. 84°Sunny0% rain21% humidityGusts 28 mph
  5. 84°Sunny0% rain23% humidityGusts 26 mph
  6. 82°Clear0% rain24% humidityGusts 26 mph
  7. 78°Clear0% rain27% humidityGusts 26 mph
  8. 76°Clear0% rain28% humidityGusts 28 mph
  9. 76°Clear0% rain29% humidityGusts 31 mph
  10. 75°Clear0% rain30% humidityGusts 35 mph
  11. 75°Clear0% rain31% humidityGusts 38 mph
  12. 74°Clear0% rain33% humidityGusts 39 mph
  13. 74°Clear0% rain35% humidityGusts 39 mph
  14. 72°Clear0% rain38% humidityGusts 39 mph
  15. 72°Clear0% rain39% humidityGusts 39 mph
  16. 72°Clear0% rain40% humidityGusts 39 mph
  17. 70°Clear0% rain42% humidityGusts 40 mph
  18. 70°Sunny0% rain42% humidityGusts 39 mph
  19. 70°Sunny0% rain42% humidityGusts 39 mph
  20. 72°Sunny0% rain41% humidityGusts 38 mph
  21. 76°Sunny0% rain37% humidityGusts 37 mph
  22. 79°Sunny0% rain33% humidityGusts 37 mph
  23. 82°Sunny0% rain31% humidityGusts 36 mph
  24. 86°Sunny0% rain27% humidityGusts 37 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 breezy.

Rain
0%
Humidity
21–31%
Wind
38 mph
Fri

Friday looks breezy.

Rain
0%
Humidity
24–42%
Wind
40 mph
Sat

Saturday looks fairly quiet.

Rain
0%
Humidity
22–45%
Wind
17 mph
Sun

Sunday looks fairly quiet.

Rain
0%
Humidity
26–56%
Wind
16 mph
Mon

Monday looks fairly quiet.

Rain
2%
Humidity
35–71%
Wind
21 mph
  1. 86° / 75°Today looks breezy.0% rain · Humidity 21–31% · Wind 38 mph
  2. 90° / 70°Friday looks breezy.0% rain · Humidity 24–42% · Wind 40 mph
  3. 86° / 68°Saturday looks fairly quiet.0% rain · Humidity 22–45% · Wind 17 mph
  4. 86° / 64°Sunday looks fairly quiet.0% rain · Humidity 26–56% · Wind 16 mph
  5. 82° / 63°Monday looks fairly quiet.2% rain · Humidity 35–71% · Wind 21 mph

Environmental watch

Air quality + smoke

Air quality

Metro Riverside CO area · Updated Thu 12:25 PM
38GoodUS AQI

Good now, rising to Moderate by Fri 12 PM.

Sky check

No plume detected overhead

Satellite view · Updated Thu 11:45 AM

Air near ground38 · Good US AQI

Rain, in motion · Past four hours

Ontario radar

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

Ready when you areSee what is moving toward Ontario.

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?

Conditions could spread a fire quickly.

Wind, gusts, or the combination of dry air and wind raises the concern.

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

Sustained wind is 20 mph. Gusts may reach 32 mph. Humidity is 23% while winds are elevated.

Humidity
23%
Wind
20 mph
Gusts
32 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 Riverside

About 14 miles away, the Riverside hub looks more deeply at Riverside–San Bernardino area. It reflects that wider area rather than Ontario’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 Metro Riverside CO area, about 11 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 Ontario, 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.