What is the current water temperature at Mille Lacs Lake?

Current water temperature for Mille Lacs Lake is shown in the live forecast above. Most Minnesota lakes have no public real-time water-temperature sensor, so we estimate from recent and forecast air-temperature trends weighted by the lake's depth (42ft maximum).

Where is Mille Lacs Lake located?

Mille Lacs Lake is in Minnesota (Mille Lacs / Aitkin / Crow Wing County), with public access near Garrison, Isle, Onamia, Wahkon. Surface area is 132,516 acres.

How deep is Mille Lacs Lake?

Mille Lacs Lake's maximum depth is 42 feet. Deeper lakes carry more thermal inertia and warm more slowly through summer; shallower lakes track the air temperature faster.

Minnesota · Mille Lacs / Aitkin / Crow Wing County

Mille Lacs Lake

Garrison · Isle · Onamia · Wahkon

Loading live conditions for Mille Lacs Lake…

Surface area132,516acres

Max depth42feet

CountyMille Lacs / Aitkin / Crow Wing

Data sourceEWMA modelAir-temp trend

Things to do

Tours & activities on Mille Lacs Lake

Boat cruises, fishing trips, kayak rentals, and guided adventures from local operators.

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Places to stay

Lake houses & rentals

Vacation rentals right on the water.

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"Minnesota's second-largest inland lake and the state's walleye factory. Almost perfectly round and shallow enough to warm fast, with a ring of fishing-resort towns around the perimeter. Hard-water ice-fishing destination in winter; walleye and bass-tournament hub in summer."

Seasonal pattern

When does Mille Lacs Lake warm up?

Mille Lacs Lake is shallow (max depth 42ft), so it warms early — surface temperatures typically reach swimming range (65°F+) by mid- to late-May in most years. Live forecast above shows current conditions.

Field notes

About Mille Lacs Lake

Walleye capital of Minnesota — heavily regulated to protect the population
Shallow (42ft max) — fishes very differently than deep lakes
Co-managed with the Mille Lacs Band of Ojibwe
Famous ice-castle village every winter

Surface area: 132,516 acres
Max depth: 42 ft
County: Mille Lacs / Aitkin / Crow Wing
Water data: Modeled estimate from air-temp trends