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Marias River

Marias River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Marias 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 Marias River

73°F

TODAY

73°F

YESTERDAY

69°F

A WEEK AGO

As of today, the minimum water temperature in the Marias River 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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Marias River Over the Last 30 Days

Today the water temperature in Marias River is higher than the same day in previous years. The water temperature range here in July is from 63°F to 75°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 Marias 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

DateCurrentAverageForecast
Jul 2369°F68°F
Jul 2469°F68°F
Jul 2570°F68°F
Jul 2670°F68°F
Jul 2772°F68°F
Jul 2872°F68°F
Jul 2973°F68°F
Jul 3073°F68°F
Jul 3168°F73°F
Aug 171°F73°F
Aug 271°F73°F
Aug 371°F72°F
Aug 471°F72°F
Aug 571°F72°F
Aug 671°F72°F
Aug 771°F72°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Marias River by Month

January

MinimumAverageMaximum
34°F41°F48°F

February

MinimumAverageMaximum
34°F41°F48°F

March

MinimumAverageMaximum
34°F43°F52°F

April

MinimumAverageMaximum
36°F48°F61°F

May

MinimumAverageMaximum
45°F57°F70°F

June

MinimumAverageMaximum
57°F65°F72°F

July

MinimumAverageMaximum
63°F68°F75°F

August

MinimumAverageMaximum
63°F71°F73°F

September

MinimumAverageMaximum
52°F64°F66°F

October

MinimumAverageMaximum
46°F56°F61°F

November

MinimumAverageMaximum
37°F47°F61°F

December

MinimumAverageMaximum
37°F40°F46°F

Monthly Water Temperature Histogram for Marias River

Marias River Weather

JULY 31

66°F / 88°F
overcast

rain: 18% | wind: 17 mph

AUGUST 1

66°F / 88°F
moderate rain showers

rain: 46% | wind: 19 mph

AUGUST 2

66°F / 93°F
slight rain showers

rain: 53% | wind: 16 mph

AUGUST 3

64°F / 91°F
overcast

rain: 28% | wind: 15 mph

AUGUST 4

64°F / 88°F
overcast

rain: 17% | wind: 9 mph

Water Temperature in Marias River: General Trends and Swimming Opportunities

The Marias River, located in northwestern Montana, is a tributary of the Missouri River and flows through a largely rural and scenic area. The water temperature in the Marias River can fluctuate significantly throughout the year, with colder temperatures during the spring and fall, often dipping below 50°F (10°C). During the summer months, the temperature rises to more comfortable levels, typically ranging from 60°F to 70°F (15°C to 21°C), especially in areas with slower-moving water.

Swimming in the Marias River is possible but not a widespread activity. While the water can be refreshing during the hot summer months, the river's flow can be quite variable, with some sections being fast and others calm. Swimmers can enjoy the calmer stretches of the river, but caution is advised in areas with faster currents. The Marias River is more commonly used for fishing, kayaking, and canoeing, as its scenic surroundings and relatively peaceful flow make it ideal for these activities. Although swimming may not be the primary attraction, visitors can still enjoy the river's natural beauty and tranquility during the summer months.

Geographical Location of Marias River

Frequently Asked Questions About Marias River and its Water Temperatures

What is the current water temperature in Marias River?

The water temperature today in Marias River is 73°F (22.9°C).

What is the water temperature in Marias River during the summer months?

The average water temperature in Marias 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 Marias River in May?

The average water temperature in Marias River in May ranges from 46°F to 70°F (8°C to 21°C).

What is the water temperature in Marias River in September?

The average water temperature in Marias River in September is typically between 52°F to 66°F (11°C to 19°C).

Where does Marias River flow?

Marias River flows through United States (Montana).

Is it possible to swim in the Marias River?

Yes, it is possible to swim in the Marias River. However, it's important to ensure safety by checking current conditions and water quality.