Today | Weather | Saturday, April 4, 2026
Active Weather Warnings

Weather in Grand Rapids, Michigan

09:27 AM
Now
Rainy Weather
39° F
Feels Like 27°
Precipitation 77 %
Wind 15 mph
UV Index (0 - 11+) 0
Humidity 100 %
Today
Rainy Weather
Day 61°
Night 37°
Precipitation 95 %
Wind 15 mph
UV Index (0 - 11+) 1

Grand Rapids Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 4, 2025)
Partly Sunny with Showers

Day

52°

Night

39°

Wind

8 mph

UV Index

5

Precipitation

40 %

Air Quality in Grand Rapids

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.94 µg/m³
PM10 2.02 µg/m³
O3 0.031 ppm
NO2 1.7 ppb
SO2 0.3 ppb
CO 0.12 ppm
NH3 0.46 µg/m³
NO 0.02 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.94 µg/m³
PM102.02 µg/m³
O360.83 µg/m³
NO23.23 µg/m³
SO20.88 µg/m³
CO140.35 µg/m³
NH30.46 µg/m³
NO0.02 µg/m³

Weather Alerts and Warnings for Grand Rapids

Unknown Future Possible

Hydrologic Outlook

Hydrologic Outlook issued April 3 at 11:15AM EDT by NWS Grand Rapids MI
Apr 3, 11:15 AM Apr 4, 3:00 PM
ESFGRR

2 To 4 inches of rain has fallen across a large portion of Lower
Michigan over the last week. Rivers are now rising, and soils are
saturated. A final round of rain from this storm cycle is expected
to impact our area late Friday night and continue through the day
Saturday. Most areas will receive an additional 0.5 to 1.0 inches of
rain, with some indications that a few counties could end up with a
streak of more like 1.5 to 2.5 inches of rain or more. If this
heavier rain tracks over an urban area like Kalamazoo, Grand Rapids,
or Lansing, localized urban flooding issues are likely.

Meanwhile, as all this water continues to find its way into our
river systems, minor flooding is becoming likely on parts of the
Muskegon River, and is also a possibility on some of the typical
flood-prone trouble spots in the Grand River watershed, including in
Comstock Park and Maple River. Much will depend on exactly where the
heaviest swath of the upcoming rain falls, but the bottom line is
that some minor river flooding is becoming more likely across parts
of Southwest and West-Central Michigan as all this rain continues to
add up.
Updated: Apr 4, 8:05 AM Source: NWS Alert