Measurements:
°C
°F
CURRENT WEATHER
18:46
Duluth
52°F
W 9 mph
Feels like: 48°F
Precip: 7%
World Resorts USA Duluth Weather

7 Day Weather Forecast

10.05
mon
DAY
54°F
NW 2 mph
precip
2%
NIGHT
50°F
SW 7 mph
precip
8%
10.06
tue
DAY
68°F
NE 11 mph
precip
14%
NIGHT
58°F
E 6 mph
precip
8%
10.07
wed
DAY
68°F
E 13 mph
precip
1%
NIGHT
50°F
E 5 mph
precip
5%
10.08
thu
DAY
58°F
SE 8 mph
precip
12%
NIGHT
50°F
E 6 mph
precip
14%
10.09
fri
DAY
54°F
W 5 mph
precip
7%
NIGHT
52°F
SW 16 mph
precip
18%
10.10
sat
DAY
70°F
N 9 mph
precip
14%
NIGHT
74°F
NE 16 mph
precip
5%
10.11
sun
DAY
62°F
NW 9 mph
precip
8%
NIGHT
46°F
SW 19 mph
precip
20%

Duluth Sea Water Temperature in October, °F

Select Year: 2025 2024 2023

The average sea surface temperature in October 2025 for Duluth was 13.8°F. The maximum and minimum values were 10.0°F and 16.9°F respectively.

Duluth on the Weather Map

Best Time to Visit Duluth
The most sunny months:
August 14 days
July 13 days
May 12 days
The most warm months:
July 77.5 °F
August 75.8 °F
June 69.8 °F
Warmest sea temperature:
August 67.5 °F
July 65.5 °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:
August 3 days
July 3 days
June 2 days
The most windy months:
April 9 mph
March 8 mph
November 8 mph
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