Temperature:

Your Favorite Locations:

Your favorites list is empty.

Lake Red Rock — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Lake Red Rock, trends, monthly ranges and the forecast for the coming days.

Coralville Lake, United States
Coralville Lake, United States © By United States Army Corps of Engineers, Public domain

Current Water Temperature

23.8°C
Today
22.0°C
Yesterday
21.9°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Lake Red Rock today is 23.8°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature 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.

Water Temperature Chart Over the Last 30 Days

From May 10 to June 10

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 220.8°C21.5°C
JUN 320.8°C21.5°C
JUN 420.9°C21.5°C
JUN 521.0°C21.5°C
JUN 621.0°C21.5°C
JUN 722.0°C21.5°C
JUN 823.6°C21.5°C
JUN 1021.5°C23.7°C
JUN 1121.5°C23.6°C
JUN 1221.5°C23.5°C
JUN 1321.5°C23.3°C
JUN 1421.5°C23.2°C
JUN 1521.5°C23.1°C
JUN 1621.5°C23.0°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January0°C1°C4°C
February1°C4°C7°C
March1°C7°C13°C
April6°C12°C18°C
May12°C17°C22°C
June18°C22°C25°C
July23°C25°C27°C
August23°C26°C28°C
September19°C21°C24°C
October12°C18°C23°C
November5°C11°C17°C
December0°C3°C6°C

Lake Red Rock: Water Temperature by Location

Lake Red Rock: Weather Forecast

June 9

° / °
slight thunderstorm
rain: 12% | wind:

June 10

° / °
slight thunderstorm
rain: 20% | wind:

June 11

° / °
slight thunderstorm
rain: 39% | wind:

June 12

° / °
light drizzle
rain: 27% | wind:

Location & Local Information

Lake Red Rock is a large reservoir on the Des Moines River, and its water temperature varies substantially through the year. In winter the surface often approaches freezing, typically about 33–40°F (0.5–4°C). Spring brings a rapid warm-up with surface readings commonly in the 40–65°F (4–18°C) range as snowmelt and inflows cool or mix the water. Peak summer surface temperatures usually occur from July into early September, commonly ranging from roughly 68–82°F (20–28°C) and occasionally rising slightly higher in shallow, sheltered bays; deeper water stays noticeably cooler. By autumn the surface typically drops into the 50–70°F (10–21°C) window as air temperatures fall and stratification breaks down.

Swimming is permitted in many shoreline locations around Lake Red Rock but is generally limited to designated or posted areas managed by the U.S. Army Corps of Engineers, and visitors should observe site-specific signs. There are few if any lifeguarded beaches, boat traffic, changing currents near the dam and creek inlets, submerged hazards and steep drop-offs that make some spots unsafe, so swimmers are advised to choose marked areas during the warmest months (primarily June–August) when surface temperatures are most comfortable and to be cautious in early spring or late fall when cold water can pose hypothermia risk.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake Red Rock?
Water Temperature in Lake Red Rock today is 23.8°C.
What is the water temperature in Lake Red Rock during the summer months?
The water temperature in Lake Red Rock in summer fluctuates in the range of 18°C - 28°C.
Is it possible to swim in Lake Red Rock and what are the possibilities for this?
Yes, it is possible to swim in Lake Red Rock in Iowa. The lake offers designated swimming areas along the shore and at public beaches.