Hourly Weather | Today Thursday, June 25, 2026
Active Weather Warnings
Columbia, Missouri
3 PM
Cloudy Weather
81°
Feels Like 90°
20
Humidity: 69%
UV Index: 3
Wind: 6 mph
4 PM
Cloudy Weather
81°
Feels Like 86°
25
Humidity: 71%
UV Index: 1
Wind: 6 mph
5 PM
Cloudy Weather
79°
Feels Like 84°
47
Humidity: 74%
UV Index: 1
Wind: 6 mph
6 PM
Stormy Weather
79°
Feels Like 77°
51
Humidity: 79%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
75°
Feels Like 79°
47
Humidity: 86%
UV Index: 0
Wind: 7 mph
8 PM
Cloudy Weather
73°
Feels Like 75°
49
Humidity: 88%
UV Index: 0
Wind: 7 mph
9 PM
Stormy Weather
72°
Feels Like 70°
57
Humidity: 92%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Weather
70°
Feels Like 70°
49
Humidity: 100%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Weather
70°
Feels Like 70°
49
Humidity: 99%
UV Index: 0
Wind: 9 mph

Hourly Air Quality Forecast - AQI (US EPA)

3 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.62 µg/m³
  • PM10: 1.75 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

4 PM
28 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.25 µg/m³
  • PM10: 1.35 µg/m³
  • O3: 0.030 ppm
  • NO2: 0.5 ppb
  • SO2: 0.1 ppb
  • CO: 0.10 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.16 µg/m³
  • PM10: 1.26 µg/m³
  • O3: 0.024 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.27 µg/m³
  • PM10: 1.39 µg/m³
  • O3: 0.017 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.4 µg/m³
  • PM10: 1.54 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.46 µg/m³
  • PM10: 1.62 µg/m³
  • O3: 0.017 ppm
  • NO2: 2.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.49 µg/m³
  • PM10: 1.63 µg/m³
  • O3: 0.015 ppm
  • NO2: 1.7 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.51 µg/m³
  • PM10: 1.62 µg/m³
  • O3: 0.014 ppm
  • NO2: 1.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.49 µg/m³
  • PM10: 1.55 µg/m³
  • O3: 0.014 ppm
  • NO2: 1 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Columbia

Severe Future Possible

Flood Watch

Flood Watch issued June 25 at 1:16AM CDT until June 26 at 7:00AM CDT by NWS St Louis MO
Jun 25, 1:00 PM Jun 26, 7:00 AM
WHAT: Flash flooding caused by excessive rainfall continues to be
possible.

WHERE: Portions of Illinois, including the following areas, Bond
IL, Calhoun IL, Clinton IL, Fayette IL, Greene IL, Jersey IL,
Macoupin IL, Madison IL, Marion IL, Monroe IL, Montgomery IL, Saint
Clair IL and Washington IL and Missouri, including the following
areas, Boone MO, Callaway MO, Cole MO, Crawford MO, Franklin MO,
Gasconade MO, Jefferson MO, Lincoln MO, Moniteau MO, Montgomery MO,
Osage MO, Saint Charles MO, Saint Louis City MO, Saint Louis MO,
Warren MO and Washington MO.

WHEN: From 1 PM CDT this afternoon through Friday morning.

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

ADDITIONAL DETAILS:
- Multiple waves of thunderstorms capable of heavy rainfall.
- Some locations that may experience flooding include...
St. Louis, Columbia, O'Fallon, St. Charles, St. Peters,
Florissant, Chesterfield, Belleville, Jefferson City, Wildwood,
University City, Ballwin, Granite City, Wentzville, Alton,
Kirkwood, Maryland Heights, East St. Louis and Hazelwood.
+ Read More
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Updated: Jun 25, 1:23 PM Source: NWS Alert