Mead Lake Nb Test Site Water Temperature
Mead Lake Nb Test Site in Clark County, Wisconsin averages about 72°F at the surface in summer — warmest in Jul (~76°F) and coldest in Sep (~61°F). These are typical values by month, not a live reading.
Typical water temperature by month
Typical surface water temperature by month, from 12 field readings (2025–2025) via the EPA Water Quality Portal. Months with too few readings are left blank.
Is Mead Lake Nb Test Site warm enough to swim?
Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Want more than temperature? Mead Lake Nb Test Site scored F 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 ~76°F
Summer average ~74°F
Summer average ~77°F
Summer average ~74°F
Summer average ~76°F
Summer average ~74°F
Explore water temperatures
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Frequently asked questions
What is the water temperature of Mead Lake Nb Test Site?
Mead Lake Nb Test Site has a typical summer surface temperature of about 72°F. It is usually warmest in July (around 76°F) and coldest in September (around 61°F). These are typical values by month from 12 EPA Water Quality Portal field readings (2025–2025), not a live reading.
When is Mead Lake Nb Test Site warmest?
Surface water at Mead Lake Nb Test Site is typically warmest in July, reaching about 76°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 Mead Lake Nb Test Site warm enough to swim?
At its typical summer peak of about 72°F, Mead Lake Nb Test Site rates as "comfortable" for swimming. Pleasant for swimming — the range most people find enjoyable without a wetsuit.
Where does this Mead Lake Nb Test Site 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 — 12 readings from 1 monitoring station between 2025 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.