Today | Weather | Tuesday, September 1, 2026
Active Weather Warnings

Weather in Anchorage, Alaska

02:19 AM
Now
Night
45° F
Feels Like 43°
Precipitation 0 %
Wind 7 mph
Humidity 64 %
Today
Sunny Weather
Day 57°
Night 39°
Precipitation 1 %
Wind 5 mph
UV Index (0 - 11+) 3

Anchorage Weather Forecast Updated

23 minutes ago
Last updated on

Air Quality in Anchorage

NOW
22 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.5 µg/m³
PM10 0.5 µg/m³
O3 0.024 ppm
NO2 0.2 ppb
SO2 0 ppb
CO 0.19 ppm
NH3 0 µg/m³
NO 0 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)
PM2.50.5 µg/m³
PM100.5 µg/m³
O346.39 µg/m³
NO20.41 µg/m³
SO20.03 µg/m³
CO214.32 µg/m³
NH30 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Anchorage

Minor Expected Likely

Frost Advisory

Frost Advisory issued August 30 at 10:51AM AKDT until September 1 at 9:00AM AKDT by NWS Anchorage AK
Sep 1, 2:00 AM Sep 1, 9:00 AM
WHAT: Temperatures will be as low as 29 degrees on Tuesday will
result in frost formation.

WHERE: Colder locations throughout the Anchorage Bowl and Lower
Matanuska Valley.

WHEN: From 2 AM to 9 AM AKDT Tuesday.

IMPACTS: Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.

ADDITIONAL DETAILS: Typically colder areas of Anchorage and
Matanuska Valley, such as Butte, Muldoon, Campbell Tract, and the
Eagle River Valley, are susceptible to below freezing temperatures
early Tuesday morning. Most areas of the Anchorage and the
Matanuska Valley will see temperatures in the 30s but remain above
freezing.
+ Read More
Take steps now to protect tender plants from the cold.
Updated: Sep 1, 1:55 AM Source: NWS Alert