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

Weaver Lake Water Temperature

Weaver Lake in Hennepin County, Minnesota typically sits around 53°F at the surface in September — warmest in Aug (~55°F) and coldest in Jan (~35°F). That is a typical value for the month, not a live reading.

Typical in September
53°F
Cold
Summer average
54°F
Warmest (Aug)
55°F
Coldest (Jan)
35°F

Typical water temperature by month

Jan
35°
Feb
Mar
Apr
44°
May
48°
Jun
52°
Jul
54°
Aug
55°
Sep
53°
Oct
50°
Nov
43°
Dec

Typical surface water temperature by month, from 2,033 field readings (20102024) via the EPA Water Quality Portal. Months with too few readings are left blank.

Is Weaver Lake warm enough to swim?

At its summer peak (~54°F): Cold

Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.

Want more than temperature? Weaver Lake scored D on water quality — clarity, algae, phosphorus, depth, fish species, and swimming safety, all on one report card.

Where to stay near Weaver Lake

Planning a swim or lake trip? Compare cabins, lodges, and vacation rentals near Weaver 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 Weaver Lake

Prices for Sep 4–6, 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 Weaver Lake?

Weaver Lake typically sits around 53°F at the surface in September, from 2,033 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.

When is Weaver Lake warmest?

Surface water at Weaver Lake is typically warmest in August, reaching about 55°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 Weaver Lake warm enough to swim?

At its typical summer peak of about 54°F, Weaver Lake rates as "cold" for swimming. Wetsuit territory. Brief exposure is tolerable but prolonged swimming without protection risks hypothermia.

Where does this Weaver 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 — 2,033 readings from 3 monitoring stations between 2010 and 2024. 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.