Bighorn River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Bighorn River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Bighorn River today is 22.4°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 | 23.7°C | 21.7°C | |
| AUG 25 | 23.7°C | 21.7°C | |
| AUG 26 | 23.7°C | 21.7°C | |
| AUG 27 | 23.2°C | 21.7°C | |
| AUG 28 | 23.4°C | 21.7°C | |
| AUG 29 | 23.2°C | 21.7°C | |
| AUG 30 | 23.0°C | 21.7°C | |
| AUG 31 | 22.8°C | 21.7°C | |
| SEP 1 | 15.5°C | 22.1°C | |
| SEP 2 | 15.5°C | 21.7°C | |
| SEP 3 | 15.5°C | 21.4°C | |
| SEP 4 | 15.5°C | 21.0°C | |
| SEP 5 | 15.5°C | 20.7°C | |
| SEP 6 | 15.5°C | 20.3°C | |
| SEP 7 | 15.5°C | 20.0°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 | 1°C | 5°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 1°C | 6°C | 11°C |
| April | 4°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 22°C |
| July | 17°C | 22°C | 26°C |
| August | 17°C | 22°C | 27°C |
| September | 11°C | 16°C | 20°C |
| October | 7°C | 12°C | 17°C |
| November | 3°C | 8°C | 16°C |
| December | 2°C | 5°C | 8°C |
Bighorn River: Water Temperature by Location
Bighorn River: Weather Forecast
September 1
September 2
September 3
September 4
September 5
September 6
Location & Local Information
Source Two Ocean Mountain
• location Wind River Range, Teton County
• elevation 9,760 ft (2,970 m)
Mouth Yellowstone River
• location Bighorn, Montana, Treasure County
• elevation 2,687 ft (819 m)
Length 185 mi (298 km)
The Bighorn River, spanning Wyoming and Montana, is a prominent waterway known for its striking landscapes and abundant fishing opportunities. The river's water temperature is influenced by its source in the Bighorn Mountains and the regulated flows from reservoirs like the Yellowtail Dam. In summer, temperatures in the river's upper stretches often range from the mid-50s to mid-60s Fahrenheit (12-18°C), while lower sections warmed by the sun can occasionally reach the 70s (21-24°C). During winter, the water temperature drops significantly, especially in unregulated sections, often hovering near freezing.
Swimming in the Bighorn River is possible but not a primary activity due to the river's flow characteristics and recreational focus. Many sections of the river are fast-moving, with varying depths and a cold current that may not be comfortable for extended swimming. The river is much more popular for fly fishing, as it is renowned for its trout populations, and for rafting and kayaking, which take advantage of its scenic canyons and steady flows.
For those looking to cool off, there are calmer stretches along the riverbanks where wading or a quick dip might be enjoyable in summer. However, swimming enthusiasts often prefer nearby lakes or reservoirs like Bighorn Lake, which offer warmer and more tranquil waters. The Bighorn River remains a destination for those seeking adventure and natural beauty, with activities like boating and fishing taking center stage.