Yellowstone Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Yellowstone Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Yellowstone Lake today is 24.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 4 | 25.2°C | 23.5°C | |
| AUG 5 | 25.2°C | 23.5°C | |
| AUG 6 | 24.4°C | 23.5°C | |
| AUG 7 | 24.5°C | 23.5°C | |
| AUG 8 | 24.6°C | 23.5°C | |
| AUG 9 | 25.0°C | 23.5°C | |
| AUG 10 | 24.4°C | 23.5°C | |
| AUG 11 | 24.1°C | 23.5°C | |
| AUG 12 | 23.5°C | 24.2°C | |
| AUG 13 | 23.5°C | 24.1°C | |
| AUG 14 | 23.5°C | 24.1°C | |
| AUG 15 | 23.5°C | 24.1°C | |
| AUG 16 | 23.5°C | 24.0°C | |
| AUG 17 | 23.5°C | 24.0°C | |
| AUG 18 | 23.5°C | 24.0°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 | 3°C | 5°C |
| February | 1°C | 4°C | 7°C |
| March | 2°C | 5°C | 8°C |
| April | 5°C | 10°C | 16°C |
| May | 10°C | 15°C | 20°C |
| June | 16°C | 20°C | 24°C |
| July | 19°C | 25°C | 30°C |
| August | 20°C | 24°C | 27°C |
| September | 16°C | 20°C | 24°C |
| October | 13°C | 16°C | 19°C |
| November | 4°C | 8°C | 12°C |
| December | 0°C | 2°C | 5°C |
Yellowstone Lake: Water Temperature by Location
Yellowstone Lake: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Yellowstone Lake in Wisconsin, located in Yellowstone Lake State Park, is a relatively shallow body of water covering 455 acres. The seasonal water temperature reflects the region's climate. In the winter, the lake freezes over, with temperatures near freezing (32∘F or 0∘C). As the seasons progress, the water warms up significantly, particularly in the shallow areas. During the summer months of July and August, the surface temperatures can rise to a comfortable range, often peaking in the mid- to upper-70∘F (around 24∘C to 26∘C) in the warmest parts of the day, making it suitable for recreational water activities.
Swimming is permitted and is a popular activity at this location, distinguishing it from its much larger and colder namesake in Wyoming. Yellowstone Lake State Park in Wisconsin features a designated public swimming beach along the lake's shoreline, complete with an adjacent bathhouse for visitor convenience. While there are no lifeguards on duty, the park welcomes visitors to enjoy swimming and other forms of water recreation, such as boating and fishing, in its temperate waters during the warmer season.