Measurements:
°C
°F
Grand Marais
38°F
W 9 mph
Feels like: 32°F
Precip: 11%
World Resorts USA Grand Marais Weather October Weather in Grand Marais

Grand Marais Weather: October

Average Day Temperature: 50.3°F
Average Night Temperature: 43.8°F
Sea Water Temperature: 52.7°F
Number of Sunny Days: 9 days
Sunshine Hours: 10.0 - 11.6 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.6 in

Air Temperature in October, °F

Select Year: 2026 2025 2024

The highest day temperature in October 2026 was 65°F. The lowest night temperature was 38°F. The average values for day and night temperatures during October were 53.3°F и 46.5°F respectivly.

Grand Marais Water Sea Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Grand Marais was 50.0°F. The maximum and minimum values were 46.2°F and 57.2°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during October. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in October, in

Precipitation total in October for Grand Marais is 0.6 in. It makes october one of the least rainy months of the year.

Wind Speed in October, mph

The average wind speed in October is 8.4 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Grand Marais in October is 5.9 hours.

Best Time to Visit Grand Marais
The most sunny months:
August 14 days
September 13 days
July 12 days
The most warm months:
August 69.8 °F
July 68.5 °F
September 63.3 °F
Warmest sea temperature:
August 60.3 °F
September 59.7 °F
October 52.6 °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

Grand Marais on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +58
Hawaii +80
Houston +74
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +64
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +74
Washington +58
24 Hours Weather Forecast
Grand Marais
Local time: 22:50
27 oct, tuesday
0000 38°F
W
9 mph
0300 38°F
W
11 mph
0600 40°F
W
13 mph
0900 40°F
W
14 mph
1200 40°F
W
15 mph
1500 42°F
W
14 mph
1800 44°F
NW
13 mph
2100 46°F
W
7 mph