Today | Weather | Monday, August 24, 2026
Active Weather Warnings

Weather in Corona, California

03:15 PM
Now
Cloudy Weather
102° F
Feels Like 104°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 6
Humidity 24 %
Today
Hot Day
Day 102°
Night 66°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Corona Weather Forecast Updated

46 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 24, 2025)
Cloudy Weather

Day

99°

Night

68°

Wind

8 mph

UV Index

90

Precipitation

5 %

Air Quality in Corona

NOW
87 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 29.31 µg/m³
PM10 44.58 µg/m³
O3 0.043 ppm
NO2 0.2 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0 µg/m³
NO 0.08 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.529.31 µg/m³
PM1044.58 µg/m³
O384.38 µg/m³
NO20.4 µg/m³
SO20.57 µg/m³
CO127.38 µg/m³
NH30 µg/m³
NO0.08 µg/m³

Weather Alerts and Warnings for Corona

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 24 at 2:08PM PDT until August 25 at 10:00AM PDT by NWS San Diego CA
Aug 24, 2:08 PM Aug 25, 10:00 AM
WHAT: For the Heat Advisory, temperatures up to 106. For the
Extreme Heat Warning, dangerously hot conditions with temperatures
up to 110 expected.

WHERE: San Bernardino and Riverside County Valleys-The Inland
Empire County.

WHEN: For the Heat Advisory, until 10 AM PDT Tuesday. For the
Extreme Heat Warning, from 10 AM Tuesday to 8 PM PDT Friday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.

ADDITIONAL DETAILS: Low temperatures 5 to 10 degrees above normal
will limit relief from the heat. Increasing temperatures into the
middle of next week will increase the threat of heat-related
illness across populations.
+ Read More
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Updated: Aug 24, 2:29 PM Source: NWS Alert

Air Quality Alert

Air Quality Alert issued August 24 at 1:34PM PDT by NWS San Diego CA
Aug 24, 1:34 PM Aug 28, 8:00 PM
WHAT: The South Coast AQMD has issued an air quality alert due to
harmful levels of ozone pollution.
Visit https://www.aqmd.gov/alertinfo to check current and forecasted
air quality levels.

WHERE: in the the South Coast Air Basin and Coachella Valley.
Levels of ozone pollution can vary by time and location depending on
emissions and air pollution transport.

WHEN: from 1 PM Monday to 8 PM Friday. The highest ozone levels
typically occur in the afternoon and early-evening hours.

IMPACTS: Ozone air pollution can cause serious health problems,
including trouble breathing, asthma attacks, and lung damage.
Everyone can be affected, but sensitive groups such as people with
lung disease, older adults, people who are pregnant, children, and
those who spend a lot of time outdoors are at greater risk.
+ Read More
To protect your health, check air quality levels and act as needed: * When Air Quality Index (AQI) levels are "Unhealthy for Sensitive Groups" (orange), sensitive groups as specified above should limit extended or intense outdoor activity. * When AQI is "Unhealthy" (red), everyone may experience health impacts. Sensitive groups should avoid extended time outdoors. * When AQI is "Very Unhealthy" (purple), sensitive groups should avoid all outdoor physical activity. Everyone else should avoid extended or intense outdoor activity. * When AQI is "Hazardous" (maroon), everyone should avoid all outdoor physical activity. * ADDITIONAL DETAILS... To help keep indoor air clean when air quality is poor: * Keep windows and doors closed * Run your air conditioner and/or an air purifier * Do not use whole house fans or swamp coolers that bring in outside air if you have other methods to stay cool * Avoid other sources of pollution such as fireplaces, candles, incense, and grilling To help minimize outdoor ozone air pollution levels: * Limit the use of gasoline powered lawn and garden equipment until evening hours * Try to delay trips to the gas station and the use of household chemicals until the evening For the latest air quality forecasts and information, visit the website at aqmd.gov.
Updated: Aug 24, 2:29 PM Source: NWS Alert