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Iowa River

Iowa River Current Water Temperature and Forecast

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

78°F

TODAY

78°F

YESTERDAY

76°F

A WEEK AGO

As of today, the minimum water temperature in the Iowa River ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health.

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 Iowa River Over the Last 30 Days

Today the water temperature in Iowa River is higher than the same day in previous years. The water temperature range here in July is from 63°F to 79°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 Iowa 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 176°F71°F
Jul 278°F71°F
Jul 376°F71°F
Jul 475°F71°F
Jul 578°F71°F
Jul 678°F71°F
Jul 778°F71°F
Jul 878°F71°F
Jul 971°F77°F
Jul 1071°F77°F
Jul 1171°F77°F
Jul 1271°F76°F
Jul 1371°F76°F
Jul 1471°F76°F
Jul 1571°F75°F
Jul 1671°F75°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 Iowa 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°F67°F77°F

July

MinimumAverageMaximum
63°F71°F79°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 Iowa River

Water Temperature in Cities and Towns on Iowa River

Eldora
United States (Iowa)
78°F
Marshalltown
United States (Iowa)
78°F
Tama
United States (Iowa)
78°F
Marengo
United States (Iowa)
77°F
United States (Iowa)
77°F

Iowa River Weather

JULY 8

66°F / 84°F
slight rain showers

rain: 21% | wind: 9 mph

JULY 9

66°F / 81°F
moderate drizzle

rain: 21% | wind: 6 mph

JULY 10

66°F / 84°F
overcast

rain: 20% | wind: 6 mph

JULY 11

66°F / 86°F
overcast

rain: 29% | wind: 16 mph

Water Temperature in Iowa River: General Trends and Swimming Opportunities

Source confluence of East Branch Iowa River and West Branch Iowa River
• location: Belmond
Mouth Mississippi River
• location near Toolesboro
Length 323 mi (520 km)

The Iowa River, winding through the state of Iowa, is a picturesque river that provides both practical and recreational value to the region. Its water temperature varies throughout the year, reflecting the state's seasonal climate. In the cooler months, temperatures in the river can drop to 35°F–50°F (2°C–10°C). During the summer, the river warms to a more comfortable range of 65°F–75°F (18°C–24°C), particularly in slower-moving or shallower sections, making it inviting for water activities.

Swimming in the Iowa River is possible in some areas, but it is not a widespread activity due to varying water quality and flow conditions. Some calmer sections near parks or designated access points are suitable for wading or taking a quick dip during the warmer months. However, the river’s currents and occasional debris can pose challenges, so caution is advised. Beyond swimming, the Iowa River is well-known for kayaking, canoeing, and fishing, offering locals and visitors a way to enjoy its scenic landscapes and connect with nature.

Geographical Location of Iowa River

Nearby Rivers

Frequently Asked Questions About Iowa River and its Water Temperatures

What is the current water temperature in Iowa River?

The water temperature today in Iowa River ranges from 77°F (24.9°C) to 78°F (25.8°C).

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

The average water temperature in Iowa 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 Iowa River in May?

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

What is the water temperature in Iowa River in September?

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

Where does Iowa River flow?

Iowa River flows through United States (Iowa).

Is it possible to swim in the Iowa River?

Yes, it is possible to swim in the Iowa River. However, due to pollution and potential health risks, it is not recommended.

What major cities are located on Iowa River?

Cities along the course of Iowa River include Iowa City (Iowa).