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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Monday, January 19, 2026
Active Weather Warnings
Jacksonville, Florida
2 AM
Night
34°
Feels Like 28°
0
Humidity: 82%
Wind: 7 mph
UV Index: 0
3 AM
Night
34°
Feels Like 27°
0
Humidity: 80%
Wind: 7 mph
UV Index: 0
4 AM
Night
34°
Feels Like 27°
0
Humidity: 78%
Wind: 7 mph
UV Index: 0
5 AM
Night
32°
Feels Like 27°
0
Humidity: 76%
Wind: 7 mph
UV Index: 0
6 AM
Night
32°
Feels Like 27°
0
Humidity: 74%
Wind: 7 mph
UV Index: 0
7 AM
Night
32°
Feels Like 27°
0
Humidity: 73%
Wind: 7 mph
UV Index: 0
8 AM
Sunny Weather
34°
Feels Like 32°
0
Humidity: 66%
Wind: 7 mph
UV Index: 1
9 AM
Sunny Weather
37°
Feels Like 37°
0
Humidity: 57%
Wind: 7 mph
UV Index: 2
10 AM
Sunny Weather
41°
Feels Like 43°
0
Humidity: 50%
Wind: 7 mph
UV Index: 3
11 AM
Sunny Weather
45°
Feels Like 48°
0
Humidity: 43%
Wind: 7 mph
UV Index: 3
12 PM
Sunny Weather
48°
Feels Like 52°
0
Humidity: 38%
Wind: 7 mph
UV Index: 4
1 PM
Sunny Weather
52°
Feels Like 54°
0
Humidity: 34%
Wind: 7 mph
UV Index: 3
2 PM
Sunny Weather
54°
Feels Like 55°
0
Humidity: 31%
Wind: 7 mph
UV Index: 3
3 PM
Sunny Weather
55°
Feels Like 55°
0
Humidity: 30%
Wind: 7 mph
UV Index: 2
4 PM
Sunny Weather
57°
Feels Like 55°
0
Humidity: 29%
Wind: 8 mph
UV Index: 1
5 PM
Sunny Weather
55°
Feels Like 52°
0
Humidity: 32%
Wind: 7 mph
UV Index: 0
6 PM
Night
52°
Feels Like 50°
0
Humidity: 38%
Wind: 6 mph
UV Index: 0
7 PM
Night
48°
Feels Like 46°
0
Humidity: 45%
Wind: 6 mph
UV Index: 0
8 PM
Night
46°
Feels Like 43°
0
Humidity: 51%
Wind: 6 mph
UV Index: 0
9 PM
Night
43°
Feels Like 39°
0
Humidity: 58%
Wind: 6 mph
UV Index: 0
10 PM
Night
43°
Feels Like 39°
0
Humidity: 56%
Wind: 6 mph
UV Index: 0
11 PM
Night
43°
Feels Like 39°
0
Humidity: 57%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 2.22 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

3 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.95 µg/m³
  • PM10: 2.4 µg/m³
  • O3: 0.038 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

4 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.08 µg/m³
  • PM10: 2.58 µg/m³
  • O3: 0.038 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

5 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.27 µg/m³
  • PM10: 2.83 µg/m³
  • O3: 0.037 ppm
  • NO2: 1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.44 µg/m³
  • PM10: 3.06 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

7 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.71 µg/m³
  • PM10: 3.43 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.4 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.94 µg/m³
  • PM10: 3.77 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.9 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.03 µg/m³
  • PM10: 3.94 µg/m³
  • O3: 0.034 ppm
  • NO2: 2.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

10 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.29 µg/m³
  • PM10: 4.23 µg/m³
  • O3: 0.036 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.5 µg/m³
  • PM10: 4.27 µg/m³
  • O3: 0.042 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.

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

Pollutant Concentrations:

  • PM2.5: 3.44 µg/m³
  • PM10: 4.12 µg/m³
  • O3: 0.044 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.

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

Pollutant Concentrations:

  • PM2.5: 3.5 µg/m³
  • PM10: 4.13 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.7 ppb
  • SO2: 0.5 ppb
  • CO: 0.13 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:

  • PM2.5: 3.58 µg/m³
  • PM10: 4.14 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 ppb
  • SO2: 0.4 ppb
  • CO: 0.13 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:

  • PM2.5: 3.67 µg/m³
  • PM10: 4.2 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.5 ppb
  • SO2: 0.4 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.68 µg/m³
  • PM10: 4.22 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.82 µg/m³
  • PM10: 4.4 µg/m³
  • O3: 0.047 ppm
  • NO2: 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.

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

Pollutant Concentrations:

  • PM2.5: 4.04 µg/m³
  • PM10: 4.7 µg/m³
  • O3: 0.044 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.23 µg/m³
  • PM10: 4.99 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.35 µg/m³
  • PM10: 5.2 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 5.44 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.65 µg/m³
  • PM10: 5.68 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 4.75 µg/m³
  • PM10: 5.84 µg/m³
  • O3: 0.036 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 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 Jacksonville

Severe Future Possible

Freeze Watch

Freeze Watch issued January 17 at 5:28AM EST until January 19 at 9:00AM EST by NWS Jacksonville FL
Jan 19, 12:00 AM → Jan 19, 9:00 AM
WHAT: Sub-freezing temperatures as low as 24 possible early on
Monday morning.

WHERE: All of northeast and north central Florida and southeast
Georgia.

WHEN: From late Sunday night through Monday morning.

IMPACTS: Appropriate action should be taken to ensure tender
vegetation and outdoor pets have adequate protection from the cold
temperatures. Young children, the elderly and the homeless are
especially vulnerable to the cold. Take measures to protect them.
+ Read More
Take steps now to protect tender plants from the cold.
Updated: Jan 17, 11:02 PM Source: NWS Alert
Moderate Expected Likely

Freeze Warning

Freeze Warning issued January 18 at 11:24PM EST until January 19 at 9:00AM EST by NWS Jacksonville FL
Jan 18, 11:24 PM → Jan 19, 9:00 AM
WHAT: For the Freeze Warning, sub-freezing temperatures as low as
29. For the Cold Weather Advisory, very cold wind chills as low as
23 expected.

WHERE: Coastal Duval, Coastal Flagler, Northeast Coastal St.
Johns, South Central Duval, and Southeast Coastal St. Johns
Counties.

WHEN: Until 9 AM EST Monday.

IMPACTS: The cold wind chills as low as 23 degrees could result
in hypothermia or frostbite if precautions are not taken. Wind
chill values can lead to hypothermia with prolonged exposure.
Appropriate action should be taken to ensure tender vegetation and
outdoor pets have adequate protection from the cold temperatures.
Young children, the elderly and the homeless are especially
vulnerable to the cold. Take measures to protect them.
+ Read More
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold.
Updated: Jan 19, 12:31 AM Source: NWS Alert
Moderate Expected Likely

Cold Weather Advisory

Cold Weather Advisory issued January 18 at 11:24PM EST until January 19 at 9:00AM EST by NWS Jacksonville FL
Jan 19, 1:00 AM → Jan 19, 9:00 AM
WHAT: For the Freeze Warning, sub-freezing temperatures as low as
29. For the Cold Weather Advisory, very cold wind chills as low as
23 expected.

WHERE: Coastal Duval, Coastal Flagler, Northeast Coastal St.
Johns, South Central Duval, and Southeast Coastal St. Johns
Counties.

WHEN: Until 9 AM EST Monday.

IMPACTS: The cold wind chills as low as 23 degrees could result
in hypothermia or frostbite if precautions are not taken. Wind
chill values can lead to hypothermia with prolonged exposure.
Appropriate action should be taken to ensure tender vegetation and
outdoor pets have adequate protection from the cold temperatures.
Young children, the elderly and the homeless are especially
vulnerable to the cold. Take measures to protect them.
+ Read More
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Take steps now to protect tender plants from the cold.
Updated: Jan 19, 12:31 AM Source: NWS Alert