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Gallatin River
Gallatin River Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Gallatin River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Gallatin River
40°F
TODAY
37°F
YESTERDAY
37°F
A WEEK AGO
As of today, the minimum water temperature in the Gallatin River ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.
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.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Gallatin River Over the Last 30 Days
Today the water temperature in Gallatin River is lower than the same day in previous years. The water temperature range here in March is from 32°F to 52°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for Gallatin River are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Daily Water Temperature Chart
| Date | Current | Average | Forecast |
|---|---|---|---|
| Mar 20 | 37°F | 42°F | |
| Mar 21 | 37°F | 42°F | |
| Mar 22 | 37°F | 42°F | |
| Mar 23 | 37°F | 42°F | |
| Mar 24 | 37°F | 42°F | |
| Mar 25 | 37°F | 42°F | |
| Mar 26 | 37°F | 42°F | |
| Mar 27 | 40°F | 42°F | |
| Mar 28 | 42°F | 41°F | |
| Mar 29 | 42°F | 41°F | |
| Mar 30 | 42°F | 41°F | |
| Mar 31 | 42°F | 41°F | |
| Apr 1 | 50°F | 41°F | |
| Apr 2 | 50°F | 42°F | |
| Apr 3 | 50°F | 42°F | |
| Apr 4 | 50°F | 43°F |
Water Temperature Ranges in Gallatin River by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 40°F | 48°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 40°F | 48°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 42°F | 52°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 50°F | 61°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 70°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 65°F | 72°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 68°F | 75°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 71°F | 73°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 64°F | 66°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 61°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 47°F | 61°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 40°F | 46°F |
Monthly Water Temperature Histogram for Gallatin River
Gallatin River Weather
MARCH 28
43°F / 59°F
slight rainrain: 38% | wind: 22 mph
MARCH 29
36°F / 55°F
slight snow showerrain: 53% | wind: 13 mph
MARCH 30
30°F / 52°F
overcastrain: 53% | wind: 12 mph
MARCH 31
36°F / 52°F
light drizzlerain: 43% | wind: 19 mph
Water Temperature in Gallatin River: General Trends and Swimming Opportunities
Source Gallatin Range,
• location Wyoming,Gallatin Lake,Three Rivers Peak
Mouth Missouri River
• location Montana
Length 120 mi (190 km)
The Gallatin River, flowing through Montana and Yellowstone National Park, is a cold and fast-moving river that reflects its mountain origins. Fed by snowmelt and mountain springs, the river’s water temperature stays quite cool throughout the year. In spring and early summer, the river is often icy, with temperatures ranging from 40°F to 50°F (4°C to 10°C). By late summer, as the flow slows and air temperatures rise, the water can warm slightly to around 55°F–65°F (13°C–18°C), especially in calmer stretches.
Swimming in the Gallatin River is not very common due to its cold water, swift currents, and rugged terrain. The river is better known for fly fishing, whitewater rafting, and kayaking, which attract outdoor enthusiasts from around the country. For those seeking to cool off, brief wading or dipping in slower-moving sections during summer can be refreshing, but caution is advised due to the strong currents and variable depths. The Gallatin River’s beauty and untamed character make it a destination for adventure rather than leisurely swimming.
Geographical Location of Gallatin River
Nearby Rivers
Frequently Asked Questions About Gallatin River and its Water Temperatures
What is the current water temperature in Gallatin River?
The water temperature today in Gallatin River is 40°F (4.7°C).
What is the water temperature in Gallatin River during the summer months?
The average water temperature in Gallatin River during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Gallatin River in May?
The average water temperature in Gallatin River in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in Gallatin River in September?
The average water temperature in Gallatin River in September is typically between 52°F to 66°F (11°C to 19°C).
Where does Gallatin River flow?
Gallatin River flows through United States (Wyoming, Montana).
Is it possible to swim in the Gallatin River?
Yes, it is possible to swim in the Gallatin River. However, it's recommended to check local conditions as temperatures and currents can vary.