Hourly Weather Forecast for Grand Rapids, Michigan

Hourly Weather | Today › Tuesday, March 17, 2026

Active Weather Warnings

Winter Weather Advisory

Grand Rapids, Michigan

6 AM

18°

Feels Like 0°

Frost Risk: 100%

Humidity: 73%

UV Index: 0

Wind: 15 mph

7 AM

18°

Feels Like 0°

Frost Risk: 99%

Humidity: 73%

UV Index: 0

Wind: 14 mph

8 AM

18°

Feels Like 0°

Frost Risk: 99%

Humidity: 70%

UV Index: 0

Wind: 14 mph

9 AM

18°

Feels Like 1°

Frost Risk: 100%

Humidity: 72%

UV Index: 1

Wind: 14 mph

10 AM

19°

Feels Like 3°

Humidity: 66%

UV Index: 1

Wind: 15 mph

11 AM

21°

Feels Like 3°

Humidity: 62%

UV Index: 1

Wind: 15 mph

12 PM

21°

Feels Like 7°

Humidity: 59%

UV Index: 1

Wind: 16 mph

1 PM

23°

Feels Like 9°

Humidity: 57%

UV Index: 1

Wind: 16 mph

2 PM

25°

Feels Like 9°

Humidity: 54%

UV Index: 1

Wind: 15 mph

3 PM

25°

Feels Like 9°

Humidity: 52%

UV Index: 1

Wind: 16 mph

4 PM

25°

Feels Like 10°

Humidity: 48%

UV Index: 1

Wind: 16 mph

5 PM

25°

Feels Like 9°

Humidity: 50%

UV Index: 1

Wind: 16 mph

6 PM

25°

Feels Like 9°

Humidity: 51%

UV Index: 0

Wind: 15 mph

7 PM

23°

Feels Like 9°

Humidity: 53%

UV Index: 0

Wind: 13 mph

8 PM

21°

Feels Like 12°

Humidity: 57%

UV Index: 0

Wind: 9 mph

9 PM

21°

Feels Like 12°

Humidity: 62%

UV Index: 0

Wind: 8 mph

10 PM

21°

Feels Like 14°

Humidity: 63%

UV Index: 0

Wind: 8 mph

11 PM

21°

Feels Like 14°

Frost Risk: 73%

Humidity: 65%

UV Index: 0

Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 AM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.5 µg/m³
PM₁₀: 0.55 µg/m³
O₃: 0.045 ppm
NO₂: 1.2 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 AM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.5 µg/m³
PM₁₀: 0.55 µg/m³
O₃: 0.045 ppm
NO₂: 1.2 ppb
SO₂: 0.5 ppb
CO: 0.14 ppm

Health Recommendations:

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

8 AM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.5 µg/m³
PM₁₀: 0.57 µg/m³
O₃: 0.045 ppm
NO₂: 1.2 ppb
SO₂: 0.6 ppb
CO: 0.14 ppm

Health Recommendations:

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

9 AM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.5 µg/m³
PM₁₀: 0.6 µg/m³
O₃: 0.045 ppm
NO₂: 1.4 ppb
SO₂: 0.6 ppb
CO: 0.14 ppm

Health Recommendations:

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

10 AM

42 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.51 µg/m³
PM₁₀: 0.65 µg/m³
O₃: 0.045 ppm
NO₂: 1.6 ppb
SO₂: 0.6 ppb
CO: 0.14 ppm

Health Recommendations:

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

11 AM

43 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.56 µg/m³
PM₁₀: 0.72 µg/m³
O₃: 0.046 ppm
NO₂: 1.6 ppb
SO₂: 0.7 ppb
CO: 0.14 ppm

Health Recommendations:

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

12 PM

43 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.67 µg/m³
PM₁₀: 0.88 µg/m³
O₃: 0.047 ppm
NO₂: 1.5 ppb
SO₂: 0.8 ppb
CO: 0.14 ppm

Health Recommendations:

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

1 PM

44 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 0.91 µg/m³
PM₁₀: 1.25 µg/m³
O₃: 0.047 ppm
NO₂: 1.4 ppb
SO₂: 1 ppb
CO: 0.14 ppm

Health Recommendations:

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

2 PM

44 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 1.53 µg/m³
PM₁₀: 1.99 µg/m³
O₃: 0.048 ppm
NO₂: 1.5 ppb
SO₂: 1.1 ppb
CO: 0.14 ppm

Health Recommendations:

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

3 PM

45 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.35 µg/m³
PM₁₀: 2.88 µg/m³
O₃: 0.049 ppm
NO₂: 1.5 ppb
SO₂: 1.1 ppb
CO: 0.15 ppm

Health Recommendations:

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

4 PM

47 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.14 µg/m³
PM₁₀: 3.73 µg/m³
O₃: 0.050 ppm
NO₂: 1.7 ppb
SO₂: 1.2 ppb
CO: 0.15 ppm

Health Recommendations:

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

5 PM

47 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.7 µg/m³
PM₁₀: 4.32 µg/m³
O₃: 0.051 ppm
NO₂: 1.9 ppb
SO₂: 1.2 ppb
CO: 0.15 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:

PM_2.5: 4.13 µg/m³
PM₁₀: 4.82 µg/m³
O₃: 0.051 ppm
NO₂: 2.6 ppb
SO₂: 1.2 ppb
CO: 0.15 ppm

Health Recommendations:

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

7 PM

45 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.58 µg/m³
PM₁₀: 5.4 µg/m³
O₃: 0.049 ppm
NO₂: 4.2 ppb
SO₂: 1.2 ppb
CO: 0.16 ppm

Health Recommendations:

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

8 PM

43 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.07 µg/m³
PM₁₀: 6.07 µg/m³
O₃: 0.047 ppm
NO₂: 6.3 ppb
SO₂: 1.3 ppb
CO: 0.17 ppm

Health Recommendations:

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

9 PM

41 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.61 µg/m³
PM₁₀: 6.85 µg/m³
O₃: 0.045 ppm
NO₂: 7.2 ppb
SO₂: 1.5 ppb
CO: 0.18 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:

PM_2.5: 6.14 µg/m³
PM₁₀: 7.64 µg/m³
O₃: 0.043 ppm
NO₂: 7.7 ppb
SO₂: 1.6 ppb
CO: 0.19 ppm

Health Recommendations:

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

11 PM

38 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.64 µg/m³
PM₁₀: 8.37 µg/m³
O₃: 0.041 ppm
NO₂: 8 ppb
SO₂: 1.8 ppb
CO: 0.19 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 March 17 at 2:37AM EDT until March 17 at 11:00AM EDT by NWS Grand Rapids MI

Mar 17, 2:37 AM → Mar 17, 11:00 AM

WHAT: Snow. Additional snow accumulations up to one inch.

WHERE: Mecosta, Osceola, Calhoun, Barry, and Kent Counties.

WHEN: Until 11 AM EDT this morning.

IMPACTS: Visibility and road conditions may change rapidly over
short distances in lake effect snow.

+ Read More

Slow down and use caution while traveling.

Updated: Mar 17, 2:41 AM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

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Weather Alerts and Warnings for Grand Rapids

Winter Weather Advisory

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