Measurements:
°C
°F
CURRENT WEATHER
12:20
Grand Marais
48°F
W 13 mph
Feels like: 42°F
Precip: 0%
World Resorts USA Grand Marais Weather

7 Day Weather Forecast

04.23
thu
DAY
48°F
W 13 mph
precip
0%
NIGHT
48°F
W 14 mph
precip
100%
04.24
fri
DAY
46°F
SE 11 mph
precip
0%
NIGHT
36°F
S 6 mph
precip
0%
04.25
sat
DAY
44°F
N 8 mph
precip
0%
NIGHT
36°F
SW 4 mph
precip
0%
04.26
sun
DAY
40°F
S 2 mph
precip
73%
NIGHT
34°F
W 1 mph
precip
0%
04.27
mon
DAY
44°F
W 17 mph
precip
0%
NIGHT
42°F
SW 25 mph
precip
100%
04.28
tue
DAY
38°F
N 13 mph
precip
100%
NIGHT
34°F
NW 9 mph
precip
100%
04.29
wed
DAY
38°F
SE 6 mph
precip
100%
NIGHT
36°F
SE 8 mph
precip
100%

Grand Marais Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Grand Marais was 0.5°F. The maximum and minimum values were 0.1°F and 1.1°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 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
April 9 mph
more details