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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

16.0°C

TODAY

16.0°C

YESTERDAY

14.2°C

A WEEK AGO

As of today, the minimum water temperature in the Boise River ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.

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 May is from 8°C to 21°C. 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 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
May 2314.2°C13.4°C
May 2414.3°C13.4°C
May 2514.4°C13.4°C
May 2614.1°C13.4°C
May 2714.3°C13.4°C
May 2814.1°C13.4°C
May 2916.0°C13.4°C
May 3016.0°C13.4°C
May 3113.4°C15.8°C
Jun 118.5°C16.0°C
Jun 218.5°C16.2°C
Jun 318.5°C16.3°C
Jun 418.5°C16.4°C
Jun 518.5°C16.5°C
Jun 618.5°C16.6°C
Jun 718.5°C16.7°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 Boise River by Month

January

MinimumAverageMaximum
1°C5°C9°C

February

MinimumAverageMaximum
1°C5°C9°C

March

MinimumAverageMaximum
3°C6.7°C11°C

April

MinimumAverageMaximum
5°C9.9°C16°C

May

MinimumAverageMaximum
8°C13.4°C21°C

June

MinimumAverageMaximum
14°C18.5°C22°C

July

MinimumAverageMaximum
17°C20°C24°C

August

MinimumAverageMaximum
17°C21.4°C23°C

September

MinimumAverageMaximum
11°C17.6°C19°C

October

MinimumAverageMaximum
8°C13.3°C16°C

November

MinimumAverageMaximum
3°C8.1°C16°C

December

MinimumAverageMaximum
3°C4.7°C8°C

Monthly Water Temperature Histogram for Boise River

Water Temperature in Cities and Towns on Boise River

United States (Idaho)
16.3°C
Middleton
United States (Idaho)
18.2°C

Boise River Weather

MAY 31

17°C / 35°C
partly cloudy

rain: 0% | wind: 22 km/h

JUNE 1

12°C / 34°C
overcast

rain: 5% | wind: 35 km/h

JUNE 2

9°C / 22°C
overcast

rain: 15% | wind: 31 km/h

JUNE 3

8°C / 20°C
light drizzle

rain: 33% | wind: 36 km/h

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 61°F (16.3°C) to 65°F (18.2°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).