Glendale Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Glendale Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Glendale Lake today is 19.9°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 | 19.8°C | 22.0°C | |
| SEP 15 | 20.7°C | 22.0°C | |
| SEP 16 | 20.4°C | 22.0°C | |
| SEP 17 | 19.9°C | 22.0°C | |
| SEP 18 | 19.7°C | 22.0°C | |
| SEP 19 | 19.8°C | 22.0°C | |
| SEP 20 | 20.0°C | 22.0°C | |
| SEP 21 | 19.9°C | 22.0°C | |
| SEP 22 | 22.0°C | 20.0°C | |
| SEP 23 | 22.0°C | 20.1°C | |
| SEP 24 | 22.0°C | 20.2°C | |
| SEP 25 | 22.0°C | 20.3°C | |
| SEP 26 | 22.0°C | 20.4°C | |
| SEP 27 | 22.0°C | 20.5°C | |
| SEP 28 | 22.0°C | 20.6°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 | 1°C | 4°C | 6°C |
| February | 0°C | 4°C | 7°C |
| March | 1°C | 6°C | 10°C |
| April | 5°C | 10°C | 16°C |
| May | 10°C | 17°C | 22°C |
| June | 15°C | 20°C | 24°C |
| July | 22°C | 25°C | 27°C |
| August | 21°C | 26°C | 29°C |
| September | 19°C | 22°C | 25°C |
| October | 13°C | 16°C | 19°C |
| November | 4°C | 11°C | 16°C |
| December | 2°C | 5°C | 8°C |
Glendale Lake: Water Temperature by Location
Glendale Lake: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Glendale Lake in Pennsylvania typically follows the seasonal temperature patterns of small northeastern U.S. reservoirs. Surface temperatures in winter commonly drop to near freezing, roughly 32–40°F (0–4°C). In spring the lake usually warms to about 45–65°F (7–18°C) as air temperatures rise and stratification breaks down. During the warmest weeks of summer surface readings often reach around 70–80°F (21–27°C), with the warmest water in shallow, sun-exposed coves; deeper layers remain noticeably cooler. In autumn the surface cools back into the 50–65°F (10–18°C) range as the lake destratifies. Temperatures vary by depth, time of day and recent weather, so actual conditions can differ from these typical ranges.
Swimming at Glendale Lake is treated like many Pennsylvania lakes: it may be allowed in specific, managed areas but restrictions can apply depending on ownership, water-supply status and safety considerations. Some reservoirs prohibit open swimming to protect drinking-water quality or because of hazards such as steep drop-offs, cold deep water and boat traffic; other lakes permit swimming seasonally in designated beaches or at one’s own risk. For safety, comfortable recreational swimming generally occurs above about 70°F (21°C), and waters below roughly 60°F (15°C) can cause cold-shock or limit safe exposure. Always check local signage or contact the managing agency for current rules and conditions before entering the water.