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Today | Weather | Saturday, November 15, 2025
Active Weather Warnings

Weather in San Bernardino, California

01:53 PM
Now
Rainy Weather
55° F
Feels Like 48°
Precipitation 81 %
Wind 10 mph
UV Index (0 - 11+) 1
Humidity 87 %
Today
Rainy Weather
Day 57°
Night 54°
Precipitation 100 %
Wind 7 mph
UV Index (0 - 11+) 1

San Bernardino Weather Forecast Updated

41 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 15, 2024)
Rainy Night

Day

59°

Night

41°

Wind

4 mph

Precipitation

49 %

Air Quality in San Bernardino

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.75 µg/m³
PM10 1.02 µg/m³
O3 0.043 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 0.01 µg/m³
NO 0.03 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 0.75 µg/m³
PM10 – 1.02 µg/m³
O3 – 85.08 µg/m³
NO2 – 0.58 µg/m³
SO2 – 0.14 µg/m³
CO – 108.53 µg/m³
NH3 – 0.01 µg/m³
NO – 0.03 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for San Bernardino

Severe Future Possible

Flood Watch

Flood Watch issued November 15 at 12:01PM PST until November 15 at 10:00PM PST by NWS San Diego CA
Nov 15, 12:01 PM → Nov 15, 10:00 PM
WHAT: Flooding caused by excessive rainfall continues to be
possible.

WHERE: A portion of Southwest California, including the following
areas, Apple and Lucerne Valleys, Coachella Valley, Orange County
Coastal Areas, Orange County Inland Areas, Riverside County
Mountains, San Bernardino County Mountains, San Bernardino and
Riverside County Valleys-The Inland Empire, San Diego County
Coastal Areas, San Diego County Deserts, San Diego County
Mountains, San Diego County Valleys, San Gorgonio Pass near
Banning and Santa Ana Mountains and Foothills.

WHEN: Until 10 PM PST this evening.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations,
including low-water crossings. Flooding may occur in poor drainage
and urban areas. There is an increased risk for debris flows near
fire burn scars. Rockfalls and mud possible on mountain highways.

ADDITIONAL DETAILS:
- A Pacific storm will continue to bring moderate to heavy
rainfall through this afternoon and evening along with a
15-30 percent chance of thunderstorms. The heavy rainfall,
along with periods of higher intensity rainfall, will
increase the risk of flooding, especially over the recently
burned areas.
- https://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Updated: Nov 15, 1:12 PM Source: NWS Alert