Lake Springfield — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Springfield, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Springfield today is 30.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 |
|---|---|---|---|
| JUL 14 | 27.4°C | 28.0°C | |
| JUL 15 | 30.0°C | 28.0°C | |
| JUL 16 | 30.0°C | 28.0°C | |
| JUL 17 | 30.0°C | 28.0°C | |
| JUL 18 | 30.0°C | 28.0°C | |
| JUL 19 | 30.2°C | 28.0°C | |
| JUL 20 | 30.6°C | 28.0°C | |
| JUL 21 | 31.0°C | 28.0°C | |
| JUL 22 | 28.0°C | 30.6°C | |
| JUL 23 | 28.0°C | 30.4°C | |
| JUL 24 | 28.0°C | 30.3°C | |
| JUL 25 | 28.0°C | 30.2°C | |
| JUL 26 | 28.0°C | 30.0°C | |
| JUL 27 | 28.0°C | 29.9°C | |
| JUL 28 | 28.0°C | 29.8°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 | 3°C | 6°C |
| February | 1°C | 3°C | 6°C |
| March | 3°C | 6°C | 10°C |
| April | 5°C | 11°C | 18°C |
| May | 14°C | 18°C | 23°C |
| June | 20°C | 23°C | 26°C |
| July | 25°C | 28°C | 31°C |
| August | 24°C | 27°C | 29°C |
| September | 23°C | 25°C | 27°C |
| October | 16°C | 20°C | 24°C |
| November | 7°C | 12°C | 16°C |
| December | 0°C | 4°C | 7°C |
Lake Springfield: Water Temperature by Location
Lake Springfield: Weather Forecast
July 22
July 23
July 24
July 25
July 26
Location & Local Information
Lake Springfield is a man-made reservoir in central Illinois whose surface temperatures follow the region’s seasonal cycle. In spring (April–May) surface water commonly warms from roughly 45–65°F (7–18°C) as air temperatures rise. By summer (June–August) the lake often reaches about 70–80°F (21–27°C), and on hot stretches may climb into the mid-80s°F (around 29°C) in shallow bays. Autumn sees a steady cooling, with surface readings dropping from about 60°F to the 40s°F (16–4°C) through September to November. In winter the lake can approach freezing, with many areas in the low 30s–40°F (0–5°C) and occasional ice cover when conditions are sustained.
Swimming in Lake Springfield is generally restricted rather than encouraged because the reservoir serves as a municipal water supply and because of safety concerns such as variable depths, cold-water shock, and boat traffic. The city and park authorities typically permit boating and fishing in designated zones but discourage or prohibit unregulated wading and swimming to protect water quality and public safety. Visitors who want to swim should consult local rules and opt for supervised municipal pools or designated, staffed beaches in the region where lifeguards and water-quality monitoring are provided.