Measurements:
°C
°F
Duluth
58°F
SW 7 mph
Feels like: 58°F
Precip: 31%
World Resorts USA Duluth Weather

7 Day Weather Forecast

06.24
wed
DAY
60°F
W 6 mph
precip
11%
NIGHT
58°F
SW 7 mph
precip
31%
06.25
thu
DAY
62°F
W 7 mph
precip
6%
NIGHT
50°F
SW 3 mph
precip
10%
06.26
fri
DAY
66°F
W 4 mph
precip
5%
NIGHT
54°F
SW 5 mph
precip
7%
06.27
sat
DAY
64°F
W 8 mph
precip
7%
NIGHT
52°F
SW 8 mph
precip
15%
06.28
sun
DAY
68°F
W 9 mph
precip
20%
NIGHT
60°F
SW 9 mph
precip
39%
06.29
mon
DAY
72°F
W 7 mph
precip
16%
NIGHT
62°F
SW 4 mph
precip
43%
06.30
tue
DAY
84°F
E 4 mph
precip
8%
NIGHT
70°F
W 5 mph
precip
87%

Duluth Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Duluth was 10.2°F. The maximum and minimum values were 7.7°F and 15.1°F respectively.

Duluth on the Weather Map

Best Time to Visit Duluth
The most sunny months:
September 14 days
August 13 days
July 12 days
The most warm months:
July 77.4 °F
August 76.5 °F
June 70.6 °F
Warmest sea temperature:
August 67.6 °F
July 65.4 °F
September 63.7 °F
The most cold months:
January 14.4 °F
February 16.7 °F
December 21.4 °F
The most rainy months:
June 3 days
August 3 days
July 3 days
The most windy months:
April 9 mph
March 8 mph
November 8 mph