Measurements:
°C
°F
Grand Marais
54°F
SW 9 mph
Feels like: 54°F
Precip: 10%
World Resorts USA Grand Marais Weather

7 Day Weather Forecast

06.24
wed
DAY
54°F
W 11 mph
precip
73%
NIGHT
54°F
SW 9 mph
precip
10%
06.25
thu
DAY
60°F
N 8 mph
precip
5%
NIGHT
52°F
SE 5 mph
precip
8%
06.26
fri
DAY
62°F
N 3 mph
precip
5%
NIGHT
52°F
SW 6 mph
precip
9%
06.27
sat
DAY
60°F
W 6 mph
precip
7%
NIGHT
54°F
SW 12 mph
precip
8%
06.28
sun
DAY
62°F
W 11 mph
precip
11%
NIGHT
58°F
SW 9 mph
precip
53%
06.29
mon
DAY
60°F
W 9 mph
precip
35%
NIGHT
60°F
SW 4 mph
precip
43%
06.30
tue
DAY
76°F
NE 6 mph
precip
10%
NIGHT
62°F
NE 6 mph
precip
57%

Grand Marais Sea Water Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Grand Marais was 3.0°F. The maximum and minimum values were 1.4°F and 3.9°F respectively.

Grand Marais on the Weather Map

Best Time to Visit Grand Marais
The most sunny months:
September 14 days
August 13 days
May 12 days
The most warm months:
August 70.1 °F
July 69.0 °F
September 63.5 °F
Warmest sea temperature:
August 61.3 °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
July 2 days
The most windy months:
November 10 mph
December 9 mph
January 9 mph