Measurements:
°C
°F
CURRENT WEATHER
23:36
Duluth
40°F
W 11 mph
Feels like: 32°F
Precip: 61%
World Resorts USA Duluth Weather

7 Day Weather Forecast

10.26
mon
DAY
40°F
SW 11 mph
precip
15%
NIGHT
40°F
W 11 mph
precip
61%
10.27
tue
DAY
42°F
W 13 mph
precip
76%
NIGHT
46°F
SW 4 mph
precip
43%
10.28
wed
DAY
54°F
N 2 mph
precip
43%
NIGHT
50°F
SE 6 mph
precip
29%
10.29
thu
DAY
50°F
E 11 mph
precip
16%
NIGHT
42°F
NE 2 mph
precip
11%
10.30
fri
DAY
50°F
NW 1 mph
precip
11%
NIGHT
44°F
SW 7 mph
precip
26%
10.31
sat
DAY
48°F
W 9 mph
precip
22%
NIGHT
48°F
SW 7 mph
precip
43%
11.01
sun
DAY
52°F
SW 4 mph
precip
58%
NIGHT
52°F
SW 6 mph
precip
43%

Duluth Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Duluth was 13.1°F. The maximum and minimum values were 11.3°F and 16.4°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
more details