Bear Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Bear Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Bear Lake today is 21°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 24 | 23.2°C | 24.5°C | |
| AUG 25 | 23.0°C | 24.5°C | |
| AUG 26 | 21.6°C | 24.5°C | |
| AUG 27 | 20.7°C | 24.5°C | |
| AUG 28 | 20.7°C | 24.5°C | |
| AUG 29 | 20.8°C | 24.5°C | |
| AUG 30 | 20.8°C | 24.5°C | |
| AUG 31 | 20.8°C | 24.5°C | |
| SEP 1 | 16.1°C | 20.8°C | |
| SEP 2 | 16.1°C | 20.5°C | |
| SEP 3 | 16.1°C | 20.3°C | |
| SEP 4 | 16.1°C | 20.0°C | |
| SEP 5 | 16.1°C | 19.8°C | |
| SEP 6 | 16.1°C | 19.5°C | |
| SEP 7 | 16.1°C | 19.3°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 2°C | 4°C |
| February | 0°C | 1°C | 3°C |
| March | 0°C | 2°C | 4°C |
| April | 1°C | 7°C | 13°C |
| May | 7°C | 14°C | 20°C |
| June | 14°C | 18°C | 23°C |
| July | 20°C | 24°C | 27°C |
| August | 19°C | 25°C | 30°C |
| September | 14°C | 16°C | 19°C |
| October | 9°C | 14°C | 18°C |
| November | 2°C | 7°C | 12°C |
| December | 0°C | 2°C | 4°C |
Bear Lake: Water Temperature by Location
Bear Lake: Weather Forecast
September 1
September 2
September 3
September 4
September 5
September 6
Location & Local Information
Bear Lake in Wisconsin follows the pattern of many small inland lakes in the region: water temperatures are cold much of the year and warm only briefly in summer. Typical seasonal surface ranges run roughly 34–39°F (1–4°C) under ice in winter, rising to about 35–55°F (2–13°C) in spring as the lake stratifies. In summer the surface commonly reaches 65–78°F (18–26°C), with the warmest afternoons sometimes pushing into the upper 70s°F (25–26°C) on calm, sunny stretches; deeper water stays noticeably cooler. By fall the surface cools back toward 50–60°F (10–16°C) during turnover and the onset of ice formation.
Swimming is generally possible during the warmer weeks when surface temperatures reach comfortable ranges (roughly above 68–72°F / 20–22°C), but opportunities depend on access, local rules and conditions. Many lakeside owners and public parks permit swimming where there are beaches or boat landings, while private shorelines or safety advisories can restrict use. Water clarity and quality, including occasional blue‑green algae blooms or bacterial advisories, also determine whether swimming is advisable. Cold water shock remains a hazard outside the warmest weeks, so seasonal timing, local signage and common‑sense precautions should guide decisions.