Today | Weather | Monday, July 20, 2026

Active Weather Warnings

Air Quality Alert

Weather in Sterling Heights, Michigan

05:54 PM

Now

81° F

Feels Like 79°

Precipitation 0 %

Wind 10 mph

UV Index (0 - 11+) 1

Humidity 48 %

Today

Day 82°

Night 70°

Precipitation 2 %

Wind 8 mph

UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

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.

Sterling Heights Weather Forecast Updated

10 minutes ago

Last updated on July 20, 2026 at 5:43 PM

Weather Forecast History

Last Year's Weather on This Day (July 20, 2025)

Day

79°

Night

59°

Wind

6 mph

Precipitation

2 %

Air Quality in Sterling Heights

NOW

93 AQI

Moderate air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 11.97 µg/m³

PM₁₀ 12.32 µg/m³

O₃ 0.068 ppm

NO₂ 0.9 ppb

SO₂ 0.4 ppb

CO 0.31 ppm

NH₃ 0.87 µg/m³

NO 0.18 µg/m³

PM_2.5 – 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)

PM_2.5 – 11.97 µg/m³

PM₁₀ – 12.32 µg/m³

O₃ – 132.8 µg/m³

NO₂ – 1.77 µg/m³

SO₂ – 1.01 µg/m³

CO – 357.67 µg/m³

NH₃ – 0.87 µg/m³

NO – 0.18 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Sterling Heights

Air Quality Alert

Air Quality Alert issued July 20 at 11:49AM EDT by NWS Detroit/Pontiac MI

Jul 20, 11:49 AM → Jul 21, 12:00 AM

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has
issued an Air Quality Alert for July 20, 2026, for elevated levels
of fine particulate due to wildfire smoke. Concentrations will linger
from Unhealthy for Sensitive Groups (USG) range.

This is a Statewide Air Quality Alert.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with heart disease and respiratory
conditions like asthma. Watch for symptoms including wheezing,
coughing, chest tightness, dizziness, or burning in nose, throat, and
eyes. You can help reduce air pollution by limiting activities, such
as:
- outdoor burning;
- use of residential wood burning devices.

Tips for households:
- Keep windows closed overnight to prevent smoke from getting indoors
and, if possible, run central air conditioning with MERV-13 or
higher rated filters.

For up-to-date air quality data for Michigan visit the MiAir site:
Michigan.gov/MiAir

For up-to-date air quality data nationally visit EPAs Air Now site:
AirNow.gov

For further health information, please see MDHHS Wildfire Smoke and
Your Health site:
https://www.michigan.gov/mdhhs/safety-injury-prev/environmental-
health/your-health-and-wildfire-smoke

The alert is in effect for the following Michigan counties...

Midland...Bay...Huron...Saginaw...Tuscola...Sanilac...Shiawassee...
Genesee...Lapeer...St. Clair...Livingston...Oakland...Macomb...
Washtenaw...Wayne...Lenawee and Monroe.

Updated: Jul 20, 5:43 PM Source: NWS Alert