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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

6.0°C

TODAY

5.9°C

YESTERDAY

6.4°C

A WEEK AGO

As of today, the minimum water temperature in the Marias River ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.

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 lower than the same day in previous years. The water temperature range here in April is from 2°C to 16°C. The water temperature has decreased over the past 7 days but has increased over the past month.

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

Date	Current	Average	Forecast
Apr 13	6.4°C	9.0°C
Apr 14	6.7°C	9.0°C
Apr 15	6.7°C	9.0°C
Apr 16	6.1°C	9.0°C
Apr 17	6.4°C	9.0°C
Apr 18	6.7°C	9.0°C
Apr 19	5.9°C	9.0°C
Apr 20	6.0°C	9.0°C
Apr 21		9.0°C	6.2°C
Apr 22		9.0°C	6.4°C
Apr 23		9.0°C	6.6°C
Apr 24		9.0°C	6.8°C
Apr 25		9.0°C	6.9°C
Apr 26		9.0°C	7.0°C
Apr 27		9.0°C	7.1°C
Apr 28		9.0°C	7.2°C

* 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

Minimum	Average	Maximum
1°C	5°C	9°C

February

Minimum	Average	Maximum
1°C	5°C	9°C

March

Minimum	Average	Maximum
1°C	6°C	11°C

April

Minimum	Average	Maximum
2°C	9°C	16°C

May

Minimum	Average	Maximum
8°C	13.4°C	21°C

June

Minimum	Average	Maximum
14°C	18.5°C	22°C

July

Minimum	Average	Maximum
17°C	20°C	24°C

August

Minimum	Average	Maximum
17°C	21.4°C	23°C

September

Minimum	Average	Maximum
11°C	17.6°C	19°C

October

Minimum	Average	Maximum
8°C	13.3°C	16°C

November

Minimum	Average	Maximum
3°C	8.1°C	16°C

December

Minimum	Average	Maximum
3°C	4.7°C	8°C

Monthly Water Temperature Histogram for Marias River

Marias River Weather

APRIL 20

5°C / 17°C

light drizzle

rain: 38% | wind: 28 km/h

APRIL 21

5°C / 16°C

slight rain showers

rain: 58% | wind: 37 km/h

APRIL 22

3°C / 13°C

moderate drizzle

rain: 58% | wind: 29 km/h

APRIL 23

2°C / 15°C

partly cloudy

rain: 22% | wind: 16 km/h

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 43°F (6.0°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.