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Boise River

Boise River Current Water Temperature and Forecast

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

73°F

TODAY

74°F

YESTERDAY

73°F

A WEEK AGO

As of today, the minimum water temperature in the Boise 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 Boise River Over the Last 30 Days

Today the water temperature in Boise 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 has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Boise 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 1573°F68°F
Jul 1673°F68°F
Jul 1773°F68°F
Jul 1873°F68°F
Jul 1974°F68°F
Jul 2074°F68°F
Jul 2174°F68°F
Jul 2273°F68°F
Jul 2368°F73°F
Jul 2468°F72°F
Jul 2568°F72°F
Jul 2668°F71°F
Jul 2768°F71°F
Jul 2868°F71°F
Jul 2968°F71°F
Jul 3068°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 Boise River by Month

January

MinimumAverageMaximum
34°F41°F48°F

February

MinimumAverageMaximum
34°F41°F48°F

March

MinimumAverageMaximum
37°F44°F52°F

April

MinimumAverageMaximum
41°F50°F61°F

May

MinimumAverageMaximum
46°F56°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 Boise River

Water Temperature in Cities and Towns on Boise River

United States (Idaho)
73°F
Middleton
United States (Idaho)
79°F

Boise River Weather

JULY 23

63°F / 93°F
overcast

rain: 4% | wind: 12 mph

JULY 24

70°F / 102°F
mainly clear

rain: 3% | wind: 10 mph

JULY 25

66°F / 100°F
mainly clear

rain: 3% | wind: 18 mph

JULY 26

64°F / 97°F
light drizzle

rain: 5% | wind: 12 mph

Water Temperature in Boise River: General Trends and Swimming Opportunities

Source Sawtooth Range
• location Idaho
• elevation 3,497 ft (1,066 m)
Mouth Snake River
• location Idaho
• elevation 2,100 ft (640 m)
Length 102 mi (164 km)

The Boise River, flowing through the city of Boise in southwestern Idaho, is known for its clear waters and recreational opportunities. The river’s water temperature is generally cool, with summer temperatures typically ranging from the mid-50s to low 60s Fahrenheit (13-18°C). While this is refreshing during the hot summer months, it is still on the cooler side, especially compared to warmer lakes or pools. In the winter months, the water temperature drops significantly due to snowmelt and cold air, which can bring the temperature down into the low 40s (5-10°C).

Swimming in the Boise River is popular during the summer, especially in areas where the river's flow is calmer. The river features several parks and access points, such as the Boise River Greenbelt, where locals and visitors enjoy activities like tubing, wading, and swimming. The river’s clear, fresh water provides an inviting environment for those seeking relief from the summer heat. However, swimmers should be cautious of the strong currents in certain sections, particularly in areas where the flow is faster or the water is deeper.

While swimming is possible in the Boise River, it is often more known for tubing and kayaking, as its flow offers ideal conditions for these activities. The river is also a popular spot for fishing and enjoying the scenic beauty of the Boise area. For those specifically looking to swim, calmer sections and designated swimming areas provide a safe and enjoyable experience. The Boise River remains a key natural resource for recreation and a beloved spot for outdoor activities.

Geographical Location of Boise River

Frequently Asked Questions About Boise River and its Water Temperatures

What is the current water temperature in Boise River?

The water temperature today in Boise River ranges from 73°F (22.9°C) to 79°F (26.0°C).

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

The average water temperature in Boise 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 Boise River in May?

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

What is the water temperature in Boise River in September?

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

Where does Boise River flow?

Boise River flows through United States (Idaho).

Is it possible to swim in the Boise River?

Yes, it is possible to swim in the Boise River. However, caution must be exercised due to varying water levels and currents.

What major cities are located on Boise River?

Cities along the course of Boise River include Boise (Idaho).