The highest day temperature in June 2026 was 67°F. The lowest night temperature was 49°F. The average values for day and night temperatures during June were 59.1°F и 54.4°F respectivly.

The average sea surface temperature in June 2026 for Grand Marais was 36.3°F. The maximum and minimum values were 32.8°F and 38.0°F respectively.

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

Precipitation total in June for Grand Marais is 0.8 in. It makes june one of the most rainy months of the year.

The average wind speed in June is 6.7 mph. It makes June one of the most windless months of the year for Grand Marais.

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 June is 8.5 hours.