The highest day temperature in June 2026 was 77°F. The lowest night temperature was 51°F. The average values for day and night temperatures during June were 65.5°F и 56.5°F respectivly.

The average sea surface temperature in June 2026 for Duluth was 52.3°F. The maximum and minimum values were 45.4°F and 60.2°F respectively.

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

Precipitation total in June for Duluth is 1.0 in. It makes june one of the most rainy months of the year.

The average wind speed in June is 6.9 mph. This value is relatively stable throughout the year.

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 Duluth in June is 8.6 hours.