Measurements:
°C
°F
Duluth
64°F
NE 8 mph
Feels like: 64°F
Precip: 4%
World Resorts USA Duluth Weather

7 Day Weather Forecast

06.04
thu
DAY
64°F
NE 8 mph
precip
4%
NIGHT
60°F
NE 2 mph
precip
62%
06.05
fri
DAY
76°F
E 6 mph
precip
3%
NIGHT
56°F
SE 6 mph
precip
7%
06.06
sat
DAY
72°F
SW 3 mph
precip
1%
NIGHT
46°F
W 6 mph
precip
15%
06.07
sun
DAY
58°F
W 13 mph
precip
4%
NIGHT
48°F
W 8 mph
precip
14%
06.08
mon
DAY
50°F
SW 9 mph
precip
90%
NIGHT
50°F
W 5 mph
precip
64%
06.09
tue
DAY
58°F
W 7 mph
precip
35%
NIGHT
52°F
W 7 mph
precip
61%
06.10
wed
DAY
66°F
W 6 mph
precip
21%
NIGHT
54°F
SW 7 mph
precip
45%

Duluth Sea Water Temperature in June, °F

Select Year: 2025 2024 2023

The average sea surface temperature in June 2025 for Duluth was 12.9°F. The maximum and minimum values were 8.8°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