Mille Lacs Lake water temp

This data the coastal Mille Lacs Lake water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Mille Lacs Lake

Water temperature in Mille Lacs Lake today is 69.3°F. Based on our historical data over a period of ten years, the warmest water in this day in Mille Lacs Lake was recorded in 2023 and was 72.7°F, and the coldest was recorded in 2019 at 66.2°F. Water temperature in Mille Lacs Lake is expected to drop to 66.4°F in the next 10 days. September average water temperature in Mille Lacs Lake is 66.4°F, the minimum temperature is 58.3°F, and the maximum is 74.7°F.

The swimming season in Mille Lacs Lake lasts from July to August. During those months, Mille Lacs Lake water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Mille Lacs Lake in winter reaches 33.3°F, in spring 40.1°F, in summer the average temperature rises to 69.8°F, and in autumn it is 54.7°F.

Mille Lacs Lake water temperature now

Current temperature and weather

Data in a table show Mille Lacs Lake temperature today (September 5, 2025). For more information and forecast for a few days, go to the weather forecast Mille Lacs Lake.

0-3 h	3-6 h	6-9 h	9-12 h
45.3°F	43.3°F	43.9°F	46.6°F

12-15 h	15-18 h	18-21 h	21-24 h
53.2°F	56.5°F	55.2°F	53.1°F

Mille Lacs Lake water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Mille Lacs Lake. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Mille Lacs Lake on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Mille Lacs Lake

The nearest beaches and cities from Mille Lacs Lake with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Duluth	63.5°F	55.4°F		1' 5"
Park Point	63.5°F	55.4°F		1' 5"
French River	59.5°F	55.4°F		1' 5"
Knife River	60.1°F	51.8°F		1' 2"
Two Harbors	61.2°F	51.8°F		1' 8"
Port Wing	63.1°F	53.6°F		1' 10"
Herbster	63.3°F	53.6°F		2' 2"
Cornucopia	64°F	53.6°F		2' 3"
Beaver Bay	61.3°F	51.8°F		1' 7"
Ashland	66°F	55.4°F		1' 5"

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Lake Mille Lacs

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Our report for Mille Lacs Lake is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.