Weather Forecast for Duluth

Minnesota, United States of America

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Current Weather - Duluth: 19°C

Minnesota, United States of America

Clear

Feels like 19°C

Wind

4 km/h N

Humidity

88%

Pressure

1013 mb

UV Index

0

Visibility

16 km

Sunny

Sunny

Thursday, July 09, 2026

High

21°C

Low

12°C

Rain Chance

7%

Hourly Forecast

Sunny 16°C
07:00
Sunny 15°C
08:00
Partly Cloudy 14°C
09:00
Partly Cloudy 14°C
10:00
Sunny 15°C
11:00
Sunny 15°C
12:00
Sunny 21°C
13:00
Sunny 21°C
14:00
Sunny 21°C
15:00
Sunny 21°C
16:00
Sunny 20°C
17:00
Sunny 19°C
18:00
Sunny 17°C
19:00
Sunny 14°C
20:00
Sunny 13°C
21:00
Clear 13°C
22:00
Clear 12°C
23:00
Jul 10

Day Statistics

Maximum Wind

11 km/h

Humidity

74%

Precipitation

0 mm

UV Index

8

Visibility

10 km

Rain Chance

7%

Snow Chance

0%

Sun & Moon

Sunrise

05:24 AM

Sunset

09:03 PM

Moonrise

12:43 AM

Moonset

04:02 PM

Moon Phase

Waning Crescent

Moon Illumination

19%

Air Quality

PM2.5

7.7

μg/m³

PM10

8.2

μg/m³

NO₂

9.3

μg/m³

O₃

64

μg/m³

SO₂

0.8

μg/m³

CO

172.6

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Weather Alerts

Dense Fog Advisory issued July 8 at 3:12PM EDT until July 9 at 8:00AM EDT by NWS Marquette MI

Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM; Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park; Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border; Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore; Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore; Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border Jul 8, 03:12 PM - Jul 9, 03:15 AM
Severity: Minor Urgency: Expected

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 8 AM EDT /7 AM CDT/ Thursday. * IMPACTS...Low visibility will make navigation difficult.

If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

Event: Dense Fog Advisory Certainty: Likely Category: Met

Dense Fog Advisory issued July 8 at 10:24PM EDT until July 9 at 8:00AM EDT by NWS Marquette MI

Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM; Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park; Lake Superior from Upper Entrance to Portage Canal to Manitou Island MI 5NM off shore to the US/Canadian Border; Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore; Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore; Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border Jul 8, 10:24 PM - Jul 9, 08:00 AM
Severity: Minor Urgency: Expected

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 8 AM EDT /7 AM CDT/ Thursday. * IMPACTS...Low visibility will make navigation difficult.

If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.

Event: Dense Fog Advisory Certainty: Likely Category: Met

When to visit Duluth?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: June July September

January

☀️
-7°C
💧
5 Days of rain
❄️
Very heavy snowfall
🥶 Coldest month
🌵 Driest month

February

☀️
-5°C
💧
5 Days of rain
❄️
Very heavy snowfall

March

☀️
1°C
💧
8 Days of rain
❄️
Very heavy snowfall

April

☀️
6°C
💧
12 Days of rain
❄️
Very heavy snowfall

May

☀️
12°C
💧
14 Days of rain
❄️
Moderate snowfall

June

☀️
19°C
💧
16 Days of rain
❄️
No snowfall
Best time to visit
🌧 Wettest month,

July

☀️
24°C
💧
15 Days of rain
❄️
No snowfall
Best time to visit

August

☀️
24°C
💧
15 Days of rain
❄️
No snowfall
🔥 Hottest month

September

☀️
20°C
💧
14 Days of rain
❄️
No snowfall
Best time to visit

October

☀️
12°C
💧
15 Days of rain
❄️
Moderate snowfall

November

☀️
4°C
💧
10 Days of rain
❄️
Very heavy snowfall

December

☀️
-3°C
💧
7 Days of rain
❄️
Very heavy snowfall