Prewitt Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Prewitt Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Prewitt Reservoir today is 21.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| JUN 3 | 20.4°C | 20.0°C | |
| JUN 4 | 20.6°C | 20.0°C | |
| JUN 5 | 20.6°C | 20.0°C | |
| JUN 6 | 21.1°C | 20.0°C | |
| JUN 7 | 22.0°C | 20.0°C | |
| JUN 8 | 21.5°C | 20.0°C | |
| JUN 10 | 21.7°C | 20.0°C | |
| JUN 11 | 20.0°C | 21.6°C | |
| JUN 12 | 20.0°C | 21.5°C | |
| JUN 13 | 20.0°C | 21.4°C | |
| JUN 14 | 20.0°C | 21.4°C | |
| JUN 15 | 20.0°C | 21.3°C | |
| JUN 16 | 20.0°C | 21.2°C | |
| JUN 17 | 20.0°C | 21.1°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 | 3°C | 6°C |
| February | 0°C | 3°C | 7°C |
| March | 0°C | 5°C | 11°C |
| April | 4°C | 9°C | 15°C |
| May | 12°C | 17°C | 22°C |
| June | 17°C | 20°C | 23°C |
| July | 22°C | 24°C | 27°C |
| August | 22°C | 25°C | 28°C |
| September | 16°C | 20°C | 24°C |
| October | 10°C | 15°C | 20°C |
| November | 5°C | 9°C | 13°C |
| December | 0°C | 3°C | 7°C |
Prewitt Reservoir: Water Temperature by Location
Prewitt Reservoir: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Prewitt Reservoir in Colorado experiences the cold-water conditions typical of many mountain and high-plain impoundments. Seasonal surface temperatures generally climb from spring values in the mid-30s to mid-50s °F (about 2–13 °C) into summer highs that most years reach roughly 55–70 °F (13–21 °C) on warm afternoons. Autumn brings a steady cooling back into the 40s and low 50s °F (4–12 °C) as air temperatures drop, and winter frequently sees the reservoir sitting at or just above freezing, around 32–36 °F (0–2 °C), with ice cover possible depending on local conditions and snowfall. These ranges reflect surface readings; deeper water remains colder year-round and can be substantially below surface temperatures.
Swimming at Prewitt Reservoir is possible during the warmer months when access is provided, but it carries caveats. Many Colorado reservoirs that serve irrigation, wildlife habitat, or water-supply functions do not have lifeguards, formal swim beaches, or consistent facilities, and managers may impose seasonal restrictions for safety or operational reasons. Importantly, even in summer the water can feel brisk and presents a real hypothermia risk after prolonged immersion, so swimmers should exercise caution, wear thermal protection if needed, and check local regulations and posted warnings before entering the water.