Westwood Park Reservoir — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Westwood Park Reservoir, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Westwood Park Reservoir today is 18.6°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 |
|---|---|---|---|
| OCT 5 | 20.6°C | 19.5°C | |
| OCT 6 | 20.4°C | 19.5°C | |
| OCT 7 | 19.8°C | 19.5°C | |
| OCT 8 | 19.0°C | 19.5°C | |
| OCT 9 | 19.3°C | 19.5°C | |
| OCT 10 | 18.9°C | 19.5°C | |
| OCT 11 | 18.3°C | 19.5°C | |
| OCT 12 | 18.9°C | 19.5°C | |
| OCT 13 | 19.5°C | 18.6°C | |
| OCT 14 | 19.5°C | 18.7°C | |
| OCT 15 | 19.5°C | 18.7°C | |
| OCT 16 | 19.5°C | 18.8°C | |
| OCT 17 | 19.5°C | 18.8°C | |
| OCT 18 | 19.5°C | 18.9°C | |
| OCT 19 | 19.5°C | 18.9°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 | 6°C | 9°C |
| February | 1°C | 6°C | 10°C |
| March | 3°C | 7°C | 10°C |
| April | 6°C | 11°C | 17°C |
| May | 8°C | 14°C | 20°C |
| June | 16°C | 23°C | 30°C |
| July | 20°C | 24°C | 28°C |
| August | 23°C | 26°C | 29°C |
| September | 21°C | 25°C | 29°C |
| October | 17°C | 20°C | 22°C |
| November | 4°C | 11°C | 17°C |
| December | 2°C | 6°C | 9°C |
Westwood Park Reservoir: Water Temperature by Location
Westwood Park Reservoir: Weather Forecast
October 13
October 14
October 15
October 16
October 17
October 18
Location & Local Information
Westwood Park Reservoir in Indiana experiences the same seasonal temperature shifts common to small Midwestern reservoirs. Surface temperatures in winter commonly hover around freezing, roughly 32–40°F (0–4°C), and can form ice when prolonged cold sets in. In spring the water warms slowly, often ranging from about 40–60°F (4–16°C) as air temperatures rise and runoff dilutes and cools surface layers. Summer brings the warmest conditions, with typical surface readings of roughly 68–79°F (20–26°C) on average, though shallow bays can reach the low 80s (27–28°C) on particularly hot, calm days. By fall the lake cools again, generally moving through 45–65°F (7–18°C) before stabilizing toward winter. These figures vary with depth, wind, recent weather, and local inflows, and colder temperatures persist near the bottom during summer stratification.
Swimming at Westwood Park Reservoir is generally not permitted or is strongly discouraged because many small reservoirs are managed for flood control, stormwater detention, or water quality protection; signage and local ordinances commonly reflect those uses. Restrictions aim to reduce safety risks—cold water, sudden drop-offs, and submerged hazards—and to protect water quality by limiting direct human contact. If you plan to visit, confirm current rules posted by the park or local municipality, since permissions and conditions can change.