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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.

Current Real-Time Air Quality Report

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