Hourly Weather | Today Monday, April 6, 2026
Active Weather Warnings
Grand Rapids, Michigan
11 AM
Rainy Weather
43°
Feels Like 36°
58
Humidity: 71%
UV Index: 2
Wind: 10 mph
12 PM
Rainy Weather
45°
Feels Like 37°
58
Humidity: 66%
UV Index: 2
Wind: 13 mph
1 PM
Cloudy Weather
46°
Feels Like 41°
49
Humidity: 61%
UV Index: 3
Wind: 14 mph
2 PM
Cloudy Weather
46°
Feels Like 41°
43
Humidity: 57%
UV Index: 3
Wind: 15 mph
3 PM
Cloudy Weather
46°
Feels Like 39°
47
Humidity: 56%
UV Index: 2
Wind: 16 mph
4 PM
Partly Sunny with Showers
45°
Feels Like 34°
51
Humidity: 58%
UV Index: 1
Wind: 17 mph
5 PM
Partly Sunny with Showers
45°
Feels Like 30°
52
Humidity: 60%
UV Index: 1
Wind: 17 mph
6 PM
Cloudy Weather
43°
Feels Like 32°
48
Humidity: 59%
UV Index: 1
Wind: 17 mph
7 PM
Cloudy Weather
41°
Feels Like 30°
41
Humidity: 58%
UV Index: 0
Wind: 15 mph
8 PM
Cloudy Weather
37°
Feels Like 25°
34
Humidity: 60%
UV Index: 0
Wind: 17 mph
9 PM
Cloudy Night
36°
Feels Like 21°
34
Humidity: 63%
UV Index: 0
Wind: 15 mph
10 PM
Cloudy Weather
34°
Feels Like 19°
38
Humidity: 64%
UV Index: 0
Wind: 15 mph
11 PM
Snowy Weather
30°
Feels Like 16°
43
Humidity: 65%
UV Index: 0
Wind: 14 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.35 µg/m³
  • PM10: 4.23 µg/m³
  • O3: 0.043 ppm
  • NO2: 3.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

12 PM
45 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.1 µg/m³
  • PM10: 4.79 µg/m³
  • O3: 0.049 ppm
  • NO2: 2.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

1 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.19 µg/m³
  • PM10: 5.82 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

2 PM
50 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.17 µg/m³
  • PM10: 6.79 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

3 PM
54 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.18 µg/m³
  • PM10: 5.67 µg/m³
  • O3: 0.055 ppm
  • NO2: 1.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
53 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.19 µg/m³
  • PM10: 4.59 µg/m³
  • O3: 0.055 ppm
  • NO2: 1 ppb
  • SO2: 0.6 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.99 µg/m³
  • PM10: 3.3 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.96 µg/m³
  • PM10: 2.26 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.9 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

7 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.33 µg/m³
  • PM10: 1.65 µg/m³
  • O3: 0.048 ppm
  • NO2: 1.1 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

8 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.93 µg/m³
  • PM10: 1.17 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

9 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.66 µg/m³
  • PM10: 0.79 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.1 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

10 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.52 µg/m³
  • PM10: 0.64 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

11 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.55 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Grand Rapids

Severe Future Possible

Flood Watch

Flood Watch issued April 4 at 10:28PM EDT until April 10 at 6:00AM EDT by NWS Grand Rapids MI
Apr 6, 8:00 PM Apr 10, 6:00 AM
...The National Weather Service in Grand Rapids MI has issued a
Flood Watch for the following rivers in Michigan...

Grand River at Lowell affecting Kent County.

...The Flood Watch is extended for the following rivers in
Michigan...

Grand River at Ada affecting Kent County.

Grand River at Robinson Township affecting Ottawa County.

Grand River at Grand Rapids affecting Kent County.

...The Flood Watch is replaced by a River Flood Warning for the
following rivers in Michigan...

Grand River at Ionia affecting Ionia County.

.Rainfall of 1 to 3 inches has fallen in the past 24 hours on
already saturated soil causing rivers to rise. Minor river flooding
is possible.

WHAT: Flooding is possible.

WHERE: Grand River at Grand Rapids.

WHEN: From Monday evening to Friday morning.

IMPACTS: At 18.0 feet, Expect minor flooding of basements in low
lying areas in Grand Rapids. Moderate flooding of homes and
structures occurs upstream at Comstock Park and downstream in
Robinson Township.

ADDITIONAL DETAILS:
- At 9:00 PM EDT Saturday the stage was 11.3 feet.
- Forecast...Flood stage may be reached Monday evening.
- Flood stage is 18.0 feet.
- http://www.weather.gov/safety/flood
+ Read More
Residents and those with interests near the river should monitor rising water levels and be prepared for possible flood warnings. If you are in the watch area, remain alert to possible flooding. Additional information is available at www.weather.gov/grr.
Updated: Apr 5, 11:09 AM Source: NWS Alert