Hourly Weather | Today Monday, April 27, 2026
Active Weather Warnings
Indianapolis, Indiana
5 PM
Stormy Weather
70°
Feels Like 63°
72
Humidity: 67%
UV Index: 1
Wind: 17 mph
6 PM
Stormy Weather
70°
Feels Like 63°
79
Humidity: 69%
UV Index: 0
Wind: 17 mph
7 PM
Cloudy Weather
70°
Feels Like 64°
49
Humidity: 71%
UV Index: 0
Wind: 17 mph
8 PM
Cloudy Weather
68°
Feels Like 64°
49
Humidity: 73%
UV Index: 0
Wind: 20 mph
9 PM
Cloudy Weather
68°
Feels Like 64°
49
Humidity: 76%
UV Index: 0
Wind: 18 mph
10 PM
Stormy Weather
66°
Feels Like 57°
66
Humidity: 78%
UV Index: 0
Wind: 16 mph
11 PM
Stormy Weather
66°
Feels Like 57°
62
Humidity: 82%
UV Index: 0
Wind: 15 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 5.29 µg/m³
  • PM10: 6.07 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 5.03 µg/m³
  • PM10: 5.74 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.7 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.79 µg/m³
  • PM10: 5.42 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.9 ppb
  • SO2: 1 ppb
  • CO: 0.12 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: 4.47 µg/m³
  • PM10: 5.02 µg/m³
  • O3: 0.045 ppm
  • NO2: 1.2 ppb
  • SO2: 1 ppb
  • CO: 0.12 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:

  • PM2.5: 4.1 µg/m³
  • PM10: 4.53 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.3 ppb
  • SO2: 0.9 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.69 µg/m³
  • PM10: 4 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.4 ppb
  • SO2: 0.9 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.49 µg/m³
  • PM10: 3.72 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.6 ppb
  • SO2: 1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Indianapolis

Severe Future Possible

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued April 27 at 2:28PM EDT until April 27 at 7:00PM EDT by NWS Indianapolis IN
Apr 27, 2:28 PM Apr 27, 7:00 PM
SEVERE THUNDERSTORM WATCH 159 REMAINS VALID UNTIL 7 PM EDT THIS
EVENING FOR THE FOLLOWING AREAS

IN INDIANA THIS WATCH INCLUDES 16 COUNTIES

IN CENTRAL INDIANA

HENDRICKS JOHNSON MARION
MORGAN

IN SOUTH CENTRAL INDIANA

BROWN LAWRENCE MONROE

IN SOUTHWEST INDIANA

DAVIESS GREENE KNOX
MARTIN SULLIVAN

IN WEST CENTRAL INDIANA

CLAY OWEN PUTNAM
VIGO

THIS INCLUDES THE CITIES OF BEDFORD, BLOOMFIELD, BLOOMINGTON,
BRAZIL, BROWNSBURG, CARLISLE, DANVILLE, FARMERSBURG, FRANKLIN,
GOSPORT, GREENCASTLE, GREENWOOD, INDIANAPOLIS, JASONVILLE,
LINTON, LOOGOOTEE, MARTINSVILLE, MITCHELL, MOORESVILLE,
NASHVILLE, PLAINFIELD, SHELBURN, SHOALS, SPENCER, SULLIVAN,
TERRE HAUTE, VINCENNES, WASHINGTON, AND WORTHINGTON.
Updated: Apr 27, 3:56 PM Source: NWS Alert
Severe Future Possible

Flood Watch

Flood Watch issued April 27 at 3:21PM EDT until April 28 at 2:00AM EDT by NWS Indianapolis IN
Apr 27, 4:00 PM Apr 28, 2:00 AM
WHAT: Flash flooding caused by excessive rainfall is possible.

WHERE: Portions of central, south central, southwest, and west
central Indiana, including the following counties, Hendricks,
Johnson, Marion, Morgan, Brown, Lawrence, Monroe, Daviess, Greene,
Knox, Martin, Sullivan, Clay, Owen, Parke, Putnam, Vermillion and
Vigo.

WHEN: Until 2 AM EDT Tuesday.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

ADDITIONAL DETAILS:
- Multiple rounds of rainfall with high rainfall rates training
over the same area late this afternoon and into tonight could
produce flash flooding.
- http://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Updated: Apr 27, 3:56 PM Source: NWS Alert