World Resorts USA Duluth Weather

Duluth 7 Days Forecast

31.05
sun
Day
57°F
W 6 mph
Precip.
0%
Night
46°F
SW 3 mph
Precip.
0%
01.06
mon
Day
57°F
W 7 mph
Precip.
0%
Night
43°F
SW 6 mph
Precip.
0%
02.06
tue
Day
61°F
W 4 mph
Precip.
0%
Night
46°F
W 2 mph
Precip.
0%
03.06
wed
Day
72°F
NE 12 mph
Precip.
0%
Night
59°F
N 10 mph
Precip.
100%
04.06
thu
Day
70°F
E 12 mph
Precip.
0%
Night
54°F
NW 7 mph
Precip.
0%
05.06
fri
Day
52°F
W 13 mph
Precip.
0%
Night
45°F
W 10 mph
Precip.
0%
06.06
sat
Day
61°F
W 4 mph
Precip.
100%
Night
59°F
SW 2 mph
Precip.
100%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 42.5°F. The highest and lowest sea temperatures during the month were 47.1°F and 37.0°F.

Sea water temperature in June, °F

Show year:
2025
2024
2023

The average sea water temperature in June of 2025 was 55.1°F. The highest and lowest sea temperatures during the month were 59.2°F and 47.8°F.

Air temperature in Duluth, °F

Precipitation total in Duluth, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Duluth

Sunniest months:
September 14 days
August 13 days
July 12 days
Warmest months:
July 74.7 °F
August 73.8 °F
June 68.5 °F
Warmest sea temp:
August 65.9 °F
July 63.8 °F
September 62.4 °F
Coldest months:
January 17.9 °F
February 20.0 °F
December 24.2 °F
Rainiest months:
June 3 days
August 3 days
July 3 days
Windiest months:
April 8.8 mph
March 8.4 mph
November 8.3 mph

Duluth on a weather map

Duluth
+52°F
W 6 mph
Feels like: +46°F
Precip.: 0%
Places in USA:
Name
°F
+43°F
+75°F
+75°F
+81°F
+64°F
+79°F
+82°F
+70°F
+52°F
+63°F
+55°F
+79°F
+79°F
+77°F
+64°F
24 Hours Forecast
Duluth
Local time: 00:24
May 31, sunday
0300
50°F
W
6 mph
0600
50°F
SW
6 mph
0900
52°F
W
6 mph
1200
57°F
W
6 mph
1500
59°F
W
7 mph
1800
55°F
W
7 mph
2100
48°F
SW
4 mph
June 01, monday
0000
46°F
SW
3 mph
Units of measurement: °C / °F