Muddy Run Recreation Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Muddy Run Recreation Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Muddy Run Recreation Reservoir today is 21.9°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 | 18.8°C | 19.5°C | |
| JUN 4 | 18.8°C | 19.5°C | |
| JUN 5 | 19.6°C | 19.5°C | |
| JUN 6 | 19.9°C | 19.5°C | |
| JUN 7 | 20.9°C | 19.5°C | |
| JUN 8 | 21.2°C | 19.5°C | |
| JUN 10 | 21.9°C | 19.5°C | |
| JUN 11 | 19.5°C | 21.8°C | |
| JUN 12 | 19.5°C | 21.7°C | |
| JUN 13 | 19.5°C | 21.5°C | |
| JUN 14 | 19.5°C | 21.4°C | |
| JUN 15 | 19.5°C | 21.3°C | |
| JUN 16 | 19.5°C | 21.2°C | |
| JUN 17 | 19.5°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 | 4°C | 7°C |
| February | 0°C | 4°C | 7°C |
| March | 2°C | 6°C | 10°C |
| April | 9°C | 13°C | 17°C |
| May | 13°C | 17°C | 22°C |
| June | 17°C | 20°C | 22°C |
| July | 20°C | 25°C | 29°C |
| August | 21°C | 23°C | 26°C |
| September | 20°C | 23°C | 26°C |
| October | 11°C | 18°C | 24°C |
| November | 5°C | 11°C | 16°C |
| December | 1°C | 6°C | 10°C |
Muddy Run Recreation Reservoir: Water Temperature by Location
Muddy Run Recreation Reservoir: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
Muddy Run Recreation Reservoir in Pennsylvania typically experiences cold to cool water much of the year, with surface temperatures following seasonal patterns common to inland reservoirs. In winter the water often sits near freezing to the low 40s °F (about 0–5 °C). Spring brings a steady warming trend, with surface temperatures commonly ranging from roughly 40–60 °F (4–16 °C) as the season progresses. By summer the reservoir can reach its warmest levels, frequently into the mid-60s to low 80s °F (18–28 °C) on the surface during warm spells, though deeper water remains substantially cooler. In autumn the surface cools again, generally falling back through the 50s to 40s °F (10–7 °C) before winter stratification breaks down.
Swimming at Muddy Run is not promoted as a formal recreational beach activity and is generally discouraged or restricted because the reservoir is managed for operational and safety reasons. Fluctuating water levels, steep or muddy shorelines, cold deep water, lack of lifeguards, and boat traffic create hazards that make unsupervised swimming unsafe. Visitors interested in entering the water should check current local rules and signage and use designated public swimming areas elsewhere that are staffed and monitored for safety.