Little Fork Lake Water Temperature
Little Fork Lake in Oneida County, Wisconsin averages about 65°F at the surface in summer — warmest in Jul (~65°F) and coldest in Mar (~38°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 11 field readings (2024–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Little Fork Lake warm enough to swim?
Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Want more than temperature? Little Fork Lake scored C on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.
Water temperatures at nearby Wisconsin lakes
Summer average ~63°F
Summer average ~63°F
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Summer average ~72°F
Summer average ~66°F
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Frequently asked questions
What is the water temperature of Little Fork Lake?
Little Fork Lake has a typical summer surface temperature of about 65°F. It is usually warmest in July (around 65°F) and coldest in March (around 38°F). These are typical values by month from 11 EPA Water Quality Portal field readings (2024–2025), not a live reading.
When is Little Fork Lake warmest?
Surface water at Little Fork Lake is typically warmest in July, reaching about 65°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 Fork Lake warm enough to swim?
At its typical summer peak of about 65°F, Little Fork Lake rates as "cool" for swimming. Brisk but swimmable for short dips — most people acclimate after the first few minutes.
Where does this Little Fork 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 — 11 readings from 1 monitoring station between 2024 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.