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Rainy Lake

Rainy Lake Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Rainy Lake, 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 Lake Water Temperature Information

67°F

TODAY

67°F

YESTERDAY

66°F

A WEEK AGO

As of today, the minimum water temperature in the Rainy Lake ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming.

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 Rainy Lake Over the Last 30 Days

Today the water temperature in Rainy Lake is lower than the same day in previous years. The water temperature range here in July is from 66°F to 81°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 Rainy Lake 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 966°F73°F
Jul 1066°F73°F
Jul 1167°F73°F
Jul 1267°F73°F
Jul 1367°F73°F
Jul 1467°F73°F
Jul 1567°F73°F
Jul 1667°F73°F
Jul 1773°F68°F
Jul 1873°F68°F
Jul 1973°F68°F
Jul 2073°F69°F
Jul 2173°F69°F
Jul 2273°F69°F
Jul 2373°F70°F
Jul 2473°F70°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 Rainy Lake by Month

January

MinimumAverageMaximum
32°F34°F39°F

February

MinimumAverageMaximum
32°F35°F39°F

March

MinimumAverageMaximum
32°F35°F39°F

April

MinimumAverageMaximum
36°F43°F50°F

May

MinimumAverageMaximum
41°F54°F66°F

June

MinimumAverageMaximum
55°F68°F81°F

July

MinimumAverageMaximum
66°F73°F81°F

August

MinimumAverageMaximum
73°F78°F82°F

September

MinimumAverageMaximum
64°F69°F73°F

October

MinimumAverageMaximum
43°F47°F52°F

November

MinimumAverageMaximum
37°F42°F46°F

December

MinimumAverageMaximum
34°F38°F43°F

Monthly Water Temperature Histogram for Rainy Lake

Rainy Lake Weather

JULY 17

46°F / 77°F
overcast

rain: 16% | wind: 7 mph

JULY 18

57°F / 77°F
overcast

rain: 24% | wind: 6 mph

JULY 19

57°F / 77°F
moderate rain showers

rain: 34% | wind: 6 mph

JULY 20

57°F / 82°F
overcast

rain: 17% | wind: 8 mph

Water Temperature in Rainy Lake: General Trends and Swimming Opportunities

Rainy Lake is located in the state of Minnesota, in the counties of Koochiching, St.

Rainy Lake is a large lake. Its surface area is 72 sq mi (185 sq km). Lakes of this size can serve as important regional resources, providing drinking water and fish stocks.

The water temperature in Rainy Lake varies throughout the year, ranging from 32°F (0°C) in January to 82°F (28°C) in August. The average annual water temperature of the lake is 54°F (12°C). The months when the average water temperature in Rainy Lake exceeds 68 degrees Fahrenheit (20°C) are June, July, August and September.

The nearest cities ans towns to Rainy Lake are: International Falls in Minnesota.

Geographical Location of Rainy Lake

Frequently Asked Questions About Rainy Lake and its Water Temperatures

What is the current water temperature in Rainy Lake?

The water temperature today in Rainy Lake is 67°F (19.6°C).

What is the water temperature in Rainy Lake during the summer months?

The average water temperature in Rainy Lake during the summer months is typically between 76°F to 78°F (24°C to 26°C), and it can reach up to 82°F (28°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Rainy Lake in May?

The average water temperature in Rainy Lake in May ranges from 57°F to 66°F (14°C to 19°C).

What is the water temperature in Rainy Lake in September?

The average water temperature in Rainy Lake in September is typically between 64°F to 73°F (18°C to 23°C).

Where is Rainy Lake located?

Rainy Lake is located in the United States in the state of Minnesota, in the counties of Koochiching, St. Louis, at an elevation of 1099 feet (335 meters) above sea level. The surface area of the lake is 71.516 sq mi (185.23 sq km).

Is it possible to swim in Rainy Lake and what are the possibilities for this?

Yes, it is possible to swim in Rainy Lake, Minnesota. Recreational activities such as swimming are catered for, with several beaches and camping areas available for public use.

What are the coordinates of Rainy Lake?

Rainy Lake is located at coordinates 48.5710°N 92.8690°W.

Is Lake Rainy Lake a popular vacation spot among Americans?

Rainy Lake is quite popular among Americans and ranks among the top 500 lakes in the United States.

What species of fish can be found in Rainy Lake?

Rainy Lake is home to fish species such as Walleye (best caught in Spring, Fall), Northern pike (Spring, Fall), Smallmouth bass (Spring, Fall), Largemouth bass (Spring, Fall), Yellow perch (Spring, Winter), Black crappie (Spring, Fall), Bluegill (Spring, Summer), Rock bass (Spring, Summer), Lake trout (Spring, Fall), Muskellunge (Spring, Fall), Rainbow trout (Spring, Fall), Brown trout (Spring, Fall).