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Lake McMurtry — Current Water Temperature, Annual Trends and Forecast

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

Keystone Lake, United States
Keystone Lake, United States © By Pattie, CC BY-SA 2.0

Current Water Temperature

25.9°C
Today
25.9°C
Yesterday
24.6°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 McMurtry today is 25.9°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 30 to June 30

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 2324.6°C24.0°C
JUN 2425.5°C24.0°C
JUN 2525.5°C24.0°C
JUN 2625.5°C24.0°C
JUN 2725.7°C24.0°C
JUN 2825.8°C24.0°C
JUN 2925.9°C24.0°C
JUN 3025.9°C24.0°C
JUL 128.5°C26.0°C
JUL 228.5°C26.2°C
JUL 328.5°C26.3°C
JUL 428.5°C26.4°C
JUL 528.5°C26.6°C
JUL 628.5°C26.7°C
JUL 728.5°C26.8°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°C4°C9°C
February0°C5°C10°C
March1°C10°C20°C
April8°C15°C21°C
May17°C21°C26°C
June21°C24°C27°C
July25°C29°C32°C
August23°C26°C28°C
September21°C23°C26°C
October15°C19°C23°C
November8°C14°C19°C
December4°C7°C11°C

Lake McMurtry: Water Temperature by Location

Lake McMurtry: Weather Forecast

July 1

° / °
slight thunderstorm
rain: 1% | wind:

July 2

° / °
overcast
rain: 0% | wind:

July 3

° / °
overcast
rain: 1% | wind:

July 4

° / °
slight thunderstorm
rain: 2% | wind:

July 5

° / °
slight thunderstorm
rain: 15% | wind:

Location & Local Information

Lake McMurtry’s water temperatures follow the seasonal patterns typical of small reservoirs in north‑central Oklahoma. In spring (roughly March–May) surface temperatures commonly range from about 45–70°F (7–21°C) as the lake warms; in summer (June–August) surfaces often reach 70–86°F (21–30°C) at their warmest. During fall (September–November) temperatures cool back into the mid‑50s to mid‑70s °F (13–24°C), and in winter (December–February) surface water can fall to about 32–50°F (0–10°C). These are general surface values; deeper water remains cooler, and short‑term swings occur with cold fronts, hot spells, wind and rainfall, so measured temperatures vary by location and time of day.

Swimming at Lake McMurtry is not supported by a staffed or lifeguarded, designated beach area, so people who choose to enter the water do so at their own risk. The lack of formal swimming facilities reflects concerns about unmonitored water quality, submerged hazards, and limited emergency services rather than an absolute legal ban in all areas. In practice, most recreational water use is concentrated in the warmer summer months when surface temperatures are most comfortable, but visitors should exercise caution, check local signage or park rules, and be aware that conditions can change quickly.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lake McMurtry?
Water Temperature in Lake McMurtry today is 25.9°C.
What is the water temperature in Lake McMurtry during the summer months?
The water temperature in Lake McMurtry in summer fluctuates in the range of 21°C - 32°C.
Is it possible to swim in Lake McMurtry and what are the possibilities for this?
Yes, it is possible to swim in Lake McMurtry in Oklahoma. The lake offers designated swimming areas, but it's advised to observe safety rules and hours of operation.