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Active Weather Warnings

Beach Hazards Statement

Weather in Duluth, Minnesota

12:52 PM

Now

57° F

Feels Like 55°

Precipitation 0 %

Wind 16 mph

UV Index (0 - 11+) 4

Humidity 64 %

Today

Day 59°

Night 43°

Precipitation 2 %

Wind 13 mph

UV Index (0 - 11+) 4

Duluth Weather Forecast Updated

9 minutes ago

Last updated on September 21, 2026 at 12:43 PM

Weather Forecast History

Last Year's Weather on This Day (September 21, 2025)

Day

64°

Night

55°

Wind

6 mph

Precipitation

80 %

Air Quality in Duluth

NOW

25 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 0.5 µg/m³

PM₁₀ 0.5 µg/m³

O₃ 0.027 ppm

NO₂ 0.4 ppb

SO₂ 0.1 ppb

CO 0.14 ppm

NH₃ 0.31 µg/m³

NO 0.18 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 – 52.84 µg/m³

NO₂ – 0.83 µg/m³

SO₂ – 0.15 µg/m³

CO – 159.65 µg/m³

NH₃ – 0.31 µg/m³

NO – 0.18 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Duluth

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued September 21 at 2:42AM CDT until September 21 at 10:00PM CDT by NWS Duluth MN

Sep 21, 10:00 AM → Sep 21, 10:00 PM

WHAT: Dangerous swimming conditions are expected along the
Lake Superior shoreline due to high wave action and strong rip
currents.

WHERE: Minnesota Park Point and Wisconsin Point Beaches.

WHEN: From 10 AM CDT this morning through this evening.

IMPACTS: Life-threatening waves and rip currents are
expected. Stay out of the water and stay away from dangerous
areas like piers and breakwalls.

+ Read More

Remain out of the water to avoid hazardous swimming conditions.

Updated: Sep 21, 12:43 PM Source: NWS Alert