Newton Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Newton Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Newton Reservoir today is 19.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 14 | 20.0°C | 22.6°C | |
| SEP 15 | 19.7°C | 22.6°C | |
| SEP 16 | 19.9°C | 22.6°C | |
| SEP 17 | 19.2°C | 22.6°C | |
| SEP 18 | 20.1°C | 22.6°C | |
| SEP 19 | 19.8°C | 22.6°C | |
| SEP 20 | 20.3°C | 22.6°C | |
| SEP 21 | 19.7°C | 22.6°C | |
| SEP 22 | 22.6°C | 19.8°C | |
| SEP 23 | 22.6°C | 20.0°C | |
| SEP 24 | 22.6°C | 20.1°C | |
| SEP 25 | 22.6°C | 20.3°C | |
| SEP 26 | 22.6°C | 20.4°C | |
| SEP 27 | 22.6°C | 20.6°C | |
| SEP 28 | 22.6°C | 20.7°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 |
|---|---|---|---|
| January | 0°C | 2°C | 5°C |
| February | 2°C | 4°C | 7°C |
| March | 3°C | 8°C | 13°C |
| April | 5°C | 10°C | 16°C |
| May | 9°C | 15°C | 21°C |
| June | 15°C | 20°C | 26°C |
| July | 20°C | 25°C | 30°C |
| August | 20°C | 26°C | 32°C |
| September | 17°C | 23°C | 29°C |
| October | 8°C | 15°C | 21°C |
| November | 3°C | 8°C | 12°C |
| December | 0°C | 2°C | 5°C |
Newton Reservoir: Water Temperature by Location
Newton Reservoir: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Newton Reservoir in northern Utah experiences a wide seasonal swing in surface temperatures. In spring the water commonly runs cold, roughly 40–55°F (4–13°C) as snowmelt and runoff dominate, while summer surface temperatures can warm to about 60–75°F (16–24°C) on sunny days. In autumn the reservoir typically cools again to near 45–60°F (7–16°C), and in winter the surface may approach freezing, about 32–39°F (0–4°C) with ice forming in sustained cold periods. These ranges depend on air temperature, wind, depth, and inflows; deeper or shaded parts stay colder year-round and abrupt weather changes can lower temperatures quickly.
Swimming is not actively promoted at Newton Reservoir because it is a managed irrigation and recreational water body with no staffed beaches or lifeguards, fluctuating water levels, and potential hazards such as cold shock, sudden drop-offs near inlets and outlets, and variable water quality. Recreational swimming is often allowed in principle on many Utah reservoirs, but visitors should confirm local regulations, be prepared for cold water even on warm days, and exercise caution because the site lacks formal swimming infrastructure and emergency supervision.