Today | Weather | Friday, April 3, 2026

Active Weather Warnings

Weather in Duluth, Minnesota

07:30 PM

Now

30° F

Feels Like 12°

Precipitation 49 %

Wind 21 mph

UV Index (0 - 11+) 0

Humidity 84 %

Today

Day 36°

Night 30°

Precipitation 65 %

Wind 10 mph

UV Index (0 - 11+) 3

FROST FORECAST

Overnight Frost 7 AM – 7 AM

Duluth Weather Forecast Updated

Last updated on April 03, 2026 at 6:11 PM

Air Quality in Duluth

NOW

49 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 0.5 µg/m³

PM₁₀ 0.5 µg/m³

O₃ 0.052 ppm

NO₂ 0.6 ppb

SO₂ 0 ppb

CO 0.13 ppm

NH₃ 0.16 µg/m³

NO 0.04 µg/m³

PM_2.5 – 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)

PM_2.5 – 0.5 µg/m³

PM₁₀ – 0.5 µg/m³

O₃ – 102.99 µg/m³

NO₂ – 1.1 µg/m³

SO₂ – 0.1 µg/m³

CO – 144.74 µg/m³

NH₃ – 0.16 µg/m³

NO – 0.04 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Duluth

Severe Future Possible

Winter Storm Watch

Winter Storm Watch issued April 3 at 1:10AM CDT until April 5 at 1:00AM CDT by NWS Duluth MN

Apr 3, 4:00 PM → Apr 5, 1:00 AM

WHAT: For the Winter Weather Advisory, snow. Additional snow
accumulations up to one inch. For the Winter Storm Watch, heavy
mixed precipitation possible. Total snow and sleet accumulations
between 3 and 5 inches and ice accumulations up to two tenths of
an inch possible. Winds could gust as high as 35 mph.

WHERE: Carlton and South St. Louis Counties. This includes the
Tribal Lands of the Fond du Lac Band.

WHEN: For the Winter Weather Advisory, until 7 AM CDT this
morning. For the Winter Storm Watch, from this afternoon through
late Saturday night.

IMPACTS: Plan on slippery road conditions. The hazardous
conditions could impact the Friday morning and evening commutes.

+ Read More

Slow down and use caution while traveling. In Minnesota, call 511 or visit www.511mn.org for Minnesota road information. In Wisconsin, call 511 or visit www.511wi.gov for Wisconsin road information. Monitor the latest forecasts for updates on this situation.

Updated: Apr 3, 2:09 AM Source: NWS Alert

Severe Expected Likely

Winter Storm Warning

Winter Storm Warning issued April 3 at 12:58PM CDT until April 5 at 1:00AM CDT by NWS Duluth MN

Apr 3, 7:00 PM → Apr 5, 1:00 AM

WHAT: Heavy mixed precipitation expected. Total snow and sleet
accumulations between 3 and 5 inches and ice accumulations around
one tenth of an inch. Winds gusting as high as 35 mph.

WHERE: South Aitkin and Carlton and South St. Louis Counties.
This includes the Tribal Lands of the Mille Lacs Band, East Lake
area and the Fond du Lac Band.

WHEN: From 7 PM this evening to 1 AM CDT Sunday.

IMPACTS: Plan on slippery road conditions.

ADDITIONAL DETAILS: The majority of ice accumulations will be
Friday evening and Friday night.