Hourly Weather | Today Wednesday, March 18, 2026
Active Weather Warnings
Juneau, Alaska
4 AM
Snowy Weather
27°
Feels Like 12°
68
Humidity: 87%
UV Index: 0
Wind: 12 mph
5 AM
Cloudy Weather
27°
Feels Like 14°
49
Frost Risk: 44%
Humidity: 90%
UV Index: 0
Wind: 11 mph
6 AM
Snowy Weather
27°
Feels Like 14°
64
Humidity: 88%
UV Index: 0
Wind: 9 mph
7 AM
Snowy Weather
27°
Feels Like 14°
64
Frost Risk: 44%
Humidity: 89%
UV Index: 0
Wind: 9 mph
8 AM
Snowy Weather
30°
Feels Like 18°
63
Humidity: 83%
UV Index: 0
Wind: 11 mph
9 AM
Snowy Weather
30°
Feels Like 18°
68
Humidity: 84%
UV Index: 0
Wind: 9 mph
10 AM
Cloudy Weather
30°
Feels Like 23°
49
Humidity: 83%
UV Index: 1
Wind: 9 mph
11 AM
Cloudy Weather
32°
Feels Like 23°
49
Humidity: 80%
UV Index: 1
Wind: 11 mph
12 PM
Snowy Weather
32°
Feels Like 19°
55
Humidity: 78%
UV Index: 1
Wind: 12 mph
1 PM
Cloudy Weather
32°
Feels Like 21°
47
Humidity: 77%
UV Index: 1
Wind: 14 mph
2 PM
Snowy Weather
34°
Feels Like 19°
68
Humidity: 77%
UV Index: 1
Wind: 12 mph
3 PM
Snowy Weather
32°
Feels Like 21°
61
Humidity: 75%
UV Index: 1
Wind: 12 mph
4 PM
Snowy Weather
32°
Feels Like 19°
70
Humidity: 78%
UV Index: 0
Wind: 12 mph
5 PM
Cloudy Weather
32°
Feels Like 21°
49
Humidity: 75%
UV Index: 0
Wind: 12 mph
6 PM
Snowy Weather
30°
Feels Like 18°
68
Humidity: 76%
UV Index: 0
Wind: 11 mph
7 PM
Snowy Weather
30°
Feels Like 18°
67
Humidity: 75%
UV Index: 0
Wind: 9 mph
8 PM
Cloudy Weather
28°
Feels Like 21°
40
Humidity: 78%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Weather
28°
Feels Like 21°
34
Humidity: 77%
UV Index: 0
Wind: 8 mph
10 PM
Cloudy Weather
27°
Feels Like 19°
39
Humidity: 78%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Weather
27°
Feels Like 19°
49
Humidity: 80%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.1 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
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.049 ppm
  • NO2: 0.1 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
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.050 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.052 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

2 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.5 µg/m³
  • O3: 0.054 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 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 Juneau

Moderate Expected Likely

Winter Weather Advisory

Winter Weather Advisory issued March 17 at 10:46PM AKDT until March 19 at 10:00AM AKDT by NWS Juneau AK
Mar 17, 10:46 PM Mar 19, 10:00 AM
...HIT OR MISS SNOW SHOWERS CONTINUE THROUGH THE WEEK...

.The Winter Weather Advisories have been expanded in area and
extended in time through Thursday morning as scattered to
numerous bands snow showers are expected to continually push into
the panhandle through the late week. Another organized band is
likely to push through the area late Tuesday night through
Wednesday morning. Snowfall accumulations of 6 to 10 inches are
expected through Thursday, with some locally higher amounts
possible. However, accumulations will be limited during the
daytime due to warmer temperatures as are now into the latter half
of March. In addition, snowfall accumulations will be widely
variable across the advisory areas due to the hit or miss nature
of the showers, however rates as high as 1 inch per hour and
visibilities down to 1/2 mile or less will be possible within any
heavier showers that repeatedly move over the same location.
Advisories could be upgraded to short-fuse Winter Storm Warnings
if heavier snow showers continue over the same area.

WHAT: Snow. Additional snow accumulations of 6 to 10 inches,
with locally higher amounts possible. Visibilities reduced to
1/2 mile or less.

WHERE: Yakutat, Skagway, White Pass, Haines, Hoonah, Tenakee
Springs, Gustavus, Juneau, Sitka, Angoon, and Petersburg.

WHEN: Until 10 AM AKDT Thursday.

IMPACTS: Travel could be very difficult.

ADDITIONAL DETAILS: Another heavier band of snow will move
through late Tuesday night into Wednesday. Due to the showery
nature of the snow, accumulations will be highly variable with
periods of melting in sunny breaks. Snow showers are expected to
then continue through at least Thursday morning.
+ Read More
Slow down and use caution while traveling. People are urged to prepare their property before the onset of winter weather. For the latest road conditions, where available, call 5 1 1 or visit 511.alaska.gov.
Updated: Mar 18, 1:38 AM Source: NWS Alert