Hourly Weather | Today Tuesday, December 9, 2025
Active Weather Warnings
Grand Rapids, Michigan
10 PM
Partly Sunny with a Chance of Snow
34°
Feels Like 25°
66
Humidity: 96%
Wind: 8 mph
UV Index: 0
11 PM
Snowy Weather
34°
Feels Like 23°
73
Humidity: 95%
Wind: 9 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

10 PM
32 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.56 µg/m³
  • PM10: 7.83 µg/m³
  • O3: 0.028 ppm
  • NO2: 4.9 ppb
  • SO2: 0.9 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

11 PM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.22 µg/m³
  • PM10: 7.42 µg/m³
  • O3: 0.029 ppm
  • NO2: 4.1 ppb
  • SO2: 0.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Grand Rapids

Moderate Expected Likely

Winter Weather Advisory

Winter Weather Advisory issued December 9 at 1:44PM EST until December 10 at 4:00PM EST by NWS Grand Rapids MI
Dec 9, 10:00 PM Dec 10, 4:00 PM
WHAT: Mixed precipitation expected. Total snow accumulations
between 2 and 4 inches and ice accumulations around a light glaze.

WHERE: Portions of central, south central, southwest, and west
central Michigan.

WHEN: From 10 PM this evening to 4 PM EST Wednesday.

IMPACTS: Plan on slippery road conditions. The hazardous
conditions could impact the Wednesday morning commute.
+ Read More
Slow down and use caution while traveling.
Updated: Dec 9, 8:17 PM Source: NWS Alert