Today | Weather | Wednesday, August 5, 2026

Weather in Grand Rapids, Michigan

04:06 PM
Now
Stormy Weather
77° F
Feels Like 79°
Precipitation 74 %
Wind 9 mph
UV Index (0 - 11+) 2
Humidity 74 %
Today
Sunny with a Chance of Thunderstorms
Day 79°
Night 68°
Precipitation 99 %
Wind 7 mph
UV Index (0 - 11+) 3

Grand Rapids Weather Forecast Updated

31 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 5, 2025)
Cloudy Night

Day

84°

Night

61°

Wind

6 mph

Precipitation

2 %

Air Quality in Grand Rapids

NOW
66 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.3 µg/m³
PM10 9.65 µg/m³
O3 0.059 ppm
NO2 0.8 ppb
SO2 1.4 ppb
CO 0.11 ppm
NH3 0 µg/m³
NO 0.1 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)
PM2.59.3 µg/m³
PM109.65 µg/m³
O3116.05 µg/m³
NO21.55 µg/m³
SO23.72 µg/m³
CO127.57 µg/m³
NH30 µg/m³
NO0.1 µg/m³