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LakeQuality
A wave breaking on the cobble beach of Lake Superior at Duluth, Minnesota, with a wooded headland beyond

Mitchell Lake Water Temperature

Mitchell Lake in Hennepin County, Minnesota typically sits around 55°F at the surface in October — warmest in Jul (~74°F) and coldest in Feb (~36°F). That is a typical value for the month, not a live reading.

Typical in October
55°F
Cold
Summer average
72°F
Warmest (Jul)
74°F
Coldest (Feb)
36°F

Typical water temperature by month

38°
Jan
36°
Feb
Mar
50°
Apr
60°
May
71°
Jun
74°
Jul
72°
Aug
68°
Sep
55°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (36°F) to its warmest (74°F).

Typical surface water temperature by month, from 344 field readings (2010–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Mitchell Lake warm enough to swim?

At its summer peak (~72°F): Comfortable

Pleasant for swimming — the range most people find enjoyable without a wetsuit.

Want more than temperature? Mitchell Lake water quality: clarity, algae, phosphorus, depth, fish species, and current advisories, all on one page.

Where to stay near Mitchell Lake

Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Mitchell Lake — live availability and prices. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Mitchell Lake

Prices for Oct 23–25, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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Frequently asked questions

What is the water temperature of Mitchell Lake?

Mitchell Lake typically sits around 55°F at the surface in October, from 344 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

When is Mitchell Lake warmest?

Surface water at Mitchell Lake is typically warmest in July, reaching about 74°F. Lake surface temperature lags air temperature by several weeks, so the warmest water usually arrives in mid-to-late summer even though the hottest air can come earlier.

Is Mitchell Lake warm enough to swim?

At its typical summer peak of about 72°F, Mitchell Lake rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.

Where does this Mitchell Lake water temperature data come from?

Every temperature on this page is a typical (climatological) value computed from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal — 344 readings from 1 monitoring station between 2010 and 2025. They describe what is typical for each month, not the temperature right now.

About this data

Water temperatures are a climatology — the typical value for each month, averaged from real surface-water field readings collected by state and federal agencies and published through the EPA Water Quality Portal. They tell you what to expect, not the temperature at this moment. Actual conditions vary with recent weather, depth, and time of day.