Measurements:
°C
°F
CURRENT WEATHER
16:39
Duluth
70°F
SW 9 mph
Feels like: 70°F
Precip: 13%
World Resorts USA Duluth Weather

14 Day Weather Forecast

08.25
tue
DAY
70°F
NE 9 mph
precip
24%
NIGHT
66°F
NE 3 mph
precip
27%
08.26
wed
DAY
76°F
SE 9 mph
precip
4%
NIGHT
68°F
SE 6 mph
precip
7%
08.27
thu
DAY
72°F
SW 5 mph
precip
2%
NIGHT
60°F
SW 11 mph
precip
11%
08.28
fri
DAY
62°F
W 10 mph
precip
8%
NIGHT
58°F
SW 9 mph
precip
21%
08.29
sat
DAY
68°F
SW 9 mph
precip
30%
NIGHT
66°F
SW 12 mph
precip
44%
08.30
sun
DAY
78°F
SE 9 mph
precip
8%
NIGHT
58°F
SW 14 mph
precip
19%
08.31
mon
DAY
68°F
W 6 mph
precip
32%
NIGHT
64°F
SE 9 mph
precip
8%
09.01
tue
DAY
64°F
SE 8 mph
precip
19%
NIGHT
56°F
SW 9 mph
precip
28%
09.02
wed
DAY
58°F
SW 13 mph
precip
11%
NIGHT
54°F
W 12 mph
precip
19%
09.03
thu
DAY
50°F
NW 11 mph
precip
46%
NIGHT
52°F
W 13 mph
precip
88%
09.04
fri
DAY
56°F
W 14 mph
precip
38%
NIGHT
54°F
SW 6 mph
precip
14%
09.05
sat
DAY
60°F
SW 8 mph
precip
5%
NIGHT
56°F
W 8 mph
precip
20%
09.06
sun
DAY
60°F
SW 9 mph
precip
15%
NIGHT
58°F
NE 4 mph
precip
81%
09.07
mon
DAY
58°F
N 13 mph
precip
71%
NIGHT
56°F
NE 6 mph
precip
14%

Duluth Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Duluth was 66.5°F. The maximum and minimum values were 61.6°F and 71.6°F respectively.

Duluth on the Weather Map

Best Time to Visit Duluth
The most sunny months:
September 14 days
July 13 days
August 13 days
The most warm months:
July 77.5 °F
August 76.5 °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
USA Resorts:
NAME
F°
Boston +80
Chicago +80
Hawaii +84
Houston +106
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
all resorts
24 Hours Weather Forecast
Duluth
Local time: 16:39
25 aug, tuesday
1800 70°F
SW
9 mph
2100 68°F
SW
8 mph
26 aug, wednesday
0000 66°F
NE
3 mph
0300 64°F
E
6 mph
0600 62°F
E
7 mph
0900 66°F
E
8 mph
1200 76°F
SE
9 mph
1500 78°F
S
11 mph