Measurements:
°C
°F
CURRENT WEATHER
16:34
Grand Marais
66°F
N 3 mph
Feels like: 66°F
Precip: 85%
World Resorts USA Grand Marais Weather

14 Day Weather Forecast

08.25
tue
DAY
60°F
N 3 mph
precip
89%
NIGHT
62°F
SW 4 mph
precip
64%
08.26
wed
DAY
64°F
SE 8 mph
precip
27%
NIGHT
68°F
SE 10 mph
precip
6%
08.27
thu
DAY
68°F
SE 7 mph
precip
2%
NIGHT
56°F
S 7 mph
precip
6%
08.28
fri
DAY
56°F
NW 7 mph
precip
4%
NIGHT
54°F
SW 6 mph
precip
13%
08.29
sat
DAY
58°F
W 9 mph
precip
33%
NIGHT
64°F
SW 9 mph
precip
32%
08.30
sun
DAY
66°F
N 7 mph
precip
23%
NIGHT
60°F
SW 15 mph
precip
16%
08.31
mon
DAY
60°F
W 6 mph
precip
49%
NIGHT
60°F
N 6 mph
precip
76%
09.01
tue
DAY
56°F
S 11 mph
precip
24%
NIGHT
50°F
S 7 mph
precip
26%
09.02
wed
DAY
54°F
NW 7 mph
precip
12%
NIGHT
52°F
S 5 mph
precip
16%
09.03
thu
DAY
52°F
NW 9 mph
precip
25%
NIGHT
50°F
W 13 mph
precip
48%
09.04
fri
DAY
56°F
W 11 mph
precip
9%
NIGHT
56°F
S 7 mph
precip
12%
09.05
sat
DAY
60°F
W 8 mph
precip
4%
NIGHT
56°F
NW 6 mph
precip
13%
09.06
sun
DAY
56°F
W 9 mph
precip
21%
NIGHT
56°F
SW 13 mph
precip
20%
09.07
mon
DAY
54°F
NW 11 mph
precip
65%
NIGHT
56°F
NE 9 mph
precip
55%

Grand Marais Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Grand Marais was 53.3°F. The maximum and minimum values were 47.6°F and 57.4°F respectively.

Grand Marais on the Weather Map

Best Time to Visit Grand Marais
The most sunny months:
September 14 days
August 13 days
July 12 days
The most warm months:
August 70.1 °F
July 68.5 °F
September 63.5 °F
Warmest sea temperature:
August 60.2 °F
September 60.2 °F
October 53.1 °F
The most cold months:
January 15.2 °F
February 16.3 °F
December 22.1 °F
The most rainy months:
August 3 days
April 2 days
June 2 days
The most windy months:
November 10 mph
December 9 mph
January 9 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
Grand Marais
Local time: 16:34
25 aug, tuesday
1800 66°F
N
3 mph
2100 64°F
SW
8 mph
26 aug, wednesday
0000 62°F
SW
4 mph
0300 62°F
SE
6 mph
0600 60°F
E
6 mph
0900 62°F
SE
6 mph
1200 64°F
SE
8 mph
1500 70°F
S
11 mph