Search for cities, countries, lakes and rivers
Boulder Lake Reservoir
Boulder Lake Reservoir Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Boulder Lake Reservoir, 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
66°F
TODAY
66°F
YESTERDAY
66°F
A WEEK AGO
As of today, the minimum water temperature in the Boulder Lake Reservoir 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 Boulder Lake Reservoir Over the Last 30 Days
Today the water temperature in Boulder Lake Reservoir 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 has decreased over the past 7 days but has increased over the past month.
The forecasted water temperature values for Boulder Lake Reservoir 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 |
|---|---|---|---|
| Jul 23 | 66°F | 73°F | |
| Jul 24 | 66°F | 73°F | |
| Jul 25 | 66°F | 73°F | |
| Jul 26 | 66°F | 73°F | |
| Jul 27 | 66°F | 73°F | |
| Jul 28 | 66°F | 73°F | |
| Jul 29 | 66°F | 73°F | |
| Jul 30 | 66°F | 73°F | |
| Jul 31 | 73°F | 66°F | |
| Aug 1 | 81°F | 67°F | |
| Aug 2 | 81°F | 68°F | |
| Aug 3 | 81°F | 69°F | |
| Aug 4 | 81°F | 70°F | |
| Aug 5 | 81°F | 70°F | |
| Aug 6 | 81°F | 71°F | |
| Aug 7 | 81°F | 72°F |
Water Temperature Ranges in Boulder Lake Reservoir by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 33°F | 37°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 33°F | 37°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 33°F | 37°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 39°F | 43°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 48°F | 61°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 59°F | 64°F | 70°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 66°F | 73°F | 81°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 77°F | 81°F | 86°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 61°F | 66°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 53°F | 57°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 43°F | 48°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 32°F | 36°F |
Monthly Water Temperature Histogram for Boulder Lake Reservoir
Boulder Lake Reservoir Weather
JULY 31
52°F / 77°F
overcastrain: 1% | wind: 6 mph
AUGUST 1
55°F / 81°F
overcastrain: 1% | wind: 7 mph
AUGUST 2
61°F / 77°F
overcastrain: 3% | wind: 9 mph
Water Temperature in Boulder Lake Reservoir: General Trends and Swimming Opportunities
Boulder Lake Reservoir is located in the state of Minnesota, in the county of St.
Boulder Lake Reservoir is a medium lake. Its surface area is 5.1 sq mi (13.3 sq km). Typically versatile lakes with developed ecosystems; popular for water sports and tourism.
The water temperature in Boulder Lake Reservoir varies throughout the year, ranging from 32°F (0°C) in January to 86°F (30°C) in August. The average annual water temperature of the lake is 50°F (10°C). The months when the average water temperature in Boulder Lake Reservoir exceeds 68 degrees Fahrenheit (20°C) are July and August.
The nearest cities ans towns to Boulder Lake Reservoir are: Arnold, Hermantown, Duluth, Proctor, Two Harbors, Esko, Cloquet, Carlton in Minnesota and Superior in Wisconsin.
Geographical Location of Boulder Lake Reservoir
Nearby Lakes
Frequently Asked Questions About Boulder Lake Reservoir and its Water Temperatures
What is the current water temperature in Boulder Lake Reservoir?
The water temperature today in Boulder Lake Reservoir is 66°F (18.7°C).
What is the water temperature in Boulder Lake Reservoir during the summer months?
The average water temperature in Boulder Lake Reservoir during the summer months is typically between 66°F to 81°F (19°C to 27°C), and it can reach up to 86°F (30°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Boulder Lake Reservoir in May?
The average water temperature in Boulder Lake Reservoir in May ranges from 52°F to 61°F (11°C to 16°C).
What is the water temperature in Boulder Lake Reservoir in September?
The average water temperature in Boulder Lake Reservoir in September is typically between 57°F to 66°F (14°C to 19°C).
Where is Boulder Lake Reservoir located?
Boulder Lake Reservoir is located in the United States in the state of Minnesota, in the county of St. Louis, at an elevation of 1384 feet (422 meters) above sea level. The surface area of the lake is 5.137 sq mi (13.30 sq km).
Is it possible to swim in Boulder Lake Reservoir and what are the possibilities for this?
Yes, it is possible to swim in Boulder Lake Reservoir, Minnesota. This waterbody offers public boat access which can be used for swimming too.
What are the coordinates of Boulder Lake Reservoir?
Boulder Lake Reservoir is located at coordinates 47.0630°N 92.1760°W.
Is Lake Boulder Lake Reservoir a popular vacation spot among Americans?
Boulder Lake Reservoir enjoys local popularity among the residents of State Minnesota, and nationally, it ranks in the top 10 percent of all lakes in the country.