Search for cities, countries, lakes and rivers
St. Louis
Water Temperature in St. Louis in Mississippi River: Current and Forecast
On this page, you will find comprehensive information about the water temperature in St. Louis in Mississippi 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 St. Louis
51°F
TODAY
52°F
YESTERDAY
57°F
A WEEK AGO
As of today, the minimum water temperature in St. Louis ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.
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 Mississippi River in St. Louis Over the Last 30 Days
Today the water temperature in St. Louis is higher than the same day in previous years. The water temperature range here in March is from 37°F to 57°F. The water temperature has decreased over the past 7 days but has increased over the past month.
The forecasted water temperature values for St. Louis 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.
Table of Daily Water Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Mar 21 | 57°F | 47°F | |
| Mar 22 | 55°F | 47°F | |
| Mar 23 | 55°F | 47°F | |
| Mar 24 | 55°F | 47°F | |
| Mar 25 | 57°F | 47°F | |
| Mar 26 | 52°F | 47°F | |
| Mar 27 | 52°F | 47°F | |
| Mar 28 | 51°F | 47°F | |
| Mar 29 | 47°F | 51°F | |
| Mar 30 | 47°F | 51°F | |
| Mar 31 | 47°F | 50°F | |
| Apr 1 | 50°F | 50°F | |
| Apr 2 | 50°F | 50°F | |
| Apr 3 | 50°F | 50°F | |
| Apr 4 | 50°F | 50°F | |
| Apr 5 | 50°F | 50°F |
Water Temperature Ranges in St. Louis by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 41°F | 48°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 42°F | 48°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 47°F | 57°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 Mississippi River in St. Louis
St. Louis Weather
MARCH 29
61°F / 72°F
heavy intensity rainrain: 44% | wind: 16 mph
MARCH 30
61°F / 75°F
slight rain showersrain: 66% | wind: 20 mph
MARCH 31
37°F / 59°F
overcastrain: 66% | wind: 18 mph
APRIL 1
28°F / 52°F
overcastrain: 5% | wind: 11 mph
APRIL 2
43°F / 66°F
light drizzlerain: 52% | wind: 21 mph
Water Temperature in St. Louis: General Trends and Swimming Opportunities
In St. Louis, Missouri, the Mississippi River runs through the city, offering a scenic landscape, but it is not typically considered a destination for swimming. The water temperature in the Mississippi River varies significantly throughout the year. During the warmer summer months, temperatures can reach anywhere between 75°F and 85°F (24°C to 29°C), which is warm enough for water activities. However, due to strong currents, water debris, and concerns about water quality, swimming in the Mississippi River is not safe or recommended in the area.
Despite the warm water temperatures in summer, the Mississippi River's strong flow and unpredictable nature make it more suitable for boating, fishing, and other non-swimming activities. Swimming in the river could pose serious risks, including swift currents, underwater obstacles, and pollution. As a result, locals and visitors prefer alternative swimming options, such as public pools or water parks, where water quality and safety are closely monitored.
For those seeking safe water recreation in St. Louis, there are various parks and pools throughout the city. Local aquatic centers and public swimming pools offer safe and controlled environments for swimming, with water temperatures typically maintained between 75°F and 80°F (24°C to 27°C). These alternatives provide a much safer and more comfortable option for swimming, especially during the hot summer months.
Geographical Location of St. Louis
Frequently Asked Questions About St. Louis and its Water Temperatures
What is the current water temperature in St. Louis?
The water temperature today in St. Louis is 51°F (10.8°C).
What is the water temperature in St. Louis during the summer months?
The average water temperature in St. Louis 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 St. Louis in May?
The average water temperature in St. Louis in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in St. Louis in September?
The average water temperature in St. Louis in September is typically between 52°F to 66°F (11°C to 19°C).
Is it possible to swim in the Mississippi River in St. Louis, and what are the available options for doing so?
Yes, it is possible to swim in the Mississippi River in St. Louis. However, due to strong currents and cleanliness concerns, it's safer to participate in organized events such as the Big River Regional Swim or visiting designated swim spots.