Lower Prior Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lower Prior Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lower Prior Lake today is 22.5°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 | 20.3°C | 22.0°C | |
| JUN 4 | 20.5°C | 22.0°C | |
| JUN 5 | 20.5°C | 22.0°C | |
| JUN 6 | 21.4°C | 22.0°C | |
| JUN 7 | 22.0°C | 22.0°C | |
| JUN 8 | 22.4°C | 22.0°C | |
| JUN 10 | 22.5°C | 22.0°C | |
| JUN 11 | 22.0°C | 22.5°C | |
| JUN 12 | 22.0°C | 22.5°C | |
| JUN 13 | 22.0°C | 22.4°C | |
| JUN 14 | 22.0°C | 22.4°C | |
| JUN 15 | 22.0°C | 22.4°C | |
| JUN 16 | 22.0°C | 22.4°C | |
| JUN 17 | 22.0°C | 22.3°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 | 7°C |
| February | 0°C | 3°C | 7°C |
| March | 0°C | 4°C | 9°C |
| April | 4°C | 9°C | 14°C |
| May | 11°C | 16°C | 22°C |
| June | 17°C | 22°C | 27°C |
| July | 22°C | 24°C | 27°C |
| August | 20°C | 24°C | 28°C |
| September | 18°C | 21°C | 23°C |
| October | 6°C | 13°C | 19°C |
| November | 3°C | 7°C | 11°C |
| December | 1°C | 5°C | 8°C |
Lower Prior Lake: Water Temperature by Location
Lower Prior Lake: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Lower Prior Lake’s water temperature follows the typical seasonal pattern for shallow lakes in southern Minnesota. In spring (April–May) surface temperatures usually rise from around 40–65°F (4–18°C) as ice melts and the sun warms the water. Summer (June–August) brings the warmest conditions, with surface readings commonly between 70–80°F (21–27°C) and occasional highs into the mid‑80s°F (around 29°C) during heat waves. By fall (September–November) temperatures decline to roughly 50–65°F (10–18°C) as cooling air temperatures and turnover begin. In winter the lake is often ice‑covered and surface water sits at freezing or just above; water below the ice tends toward the density maximum near 39°F (4°C).
Swimming at Lower Prior Lake is permitted during the ice‑free season where public access or designated beaches exist, provided local rules and water‑quality advisories allow it. Summer surface temperatures in the low 70s to 80s°F (about 21–27°C) are comfortable for recreational swimming, whereas cooler spring and fall conditions can make long exposure uncomfortable or risky. Swimming is unsafe in winter when ice and very cold water pose drowning and hypothermia hazards. As with any lake, brief algal blooms, recent heavy runoff, or posted advisories can temporarily restrict swimming for health reasons, so checking current local guidance is recommended before entering the water.