Little Sturgeon Lake Water Temperature
Little Sturgeon Lake in St. Louis County, Minnesota averages about 68°F at the surface in summer — warmest in Jul (~72°F) and coldest in May (~54°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 52 field readings (2018–2019) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Little Sturgeon Lake warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Little Sturgeon Lake scored C on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Minnesota lakes
Summer average ~54°F
Summer average ~55°F
Summer average ~56°F
Summer average ~61°F
Summer average ~68°F
Summer average ~70°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Little Sturgeon Lake?
Little Sturgeon Lake has a typical summer surface temperature of about 68°F. It is usually warmest in July (around 72°F) and coldest in May (around 54°F). These are typical values by month from 52 EPA Water Quality Portal field readings (2018–2019), not a live reading.
When is Little Sturgeon Lake warmest?
Surface water at Little Sturgeon Lake is typically warmest in July, reaching about 72°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 Little Sturgeon Lake warm enough to swim?
At its typical summer peak of about 68°F, Little Sturgeon Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Little Sturgeon 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 — 52 readings from 1 monitoring station between 2018 and 2019. 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.