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 14.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 | 15.7°C | 12.5°C | |
| OCT 6 | 15.5°C | 12.5°C | |
| OCT 7 | 14.1°C | 12.5°C | |
| OCT 8 | 14.8°C | 12.5°C | |
| OCT 9 | 15.1°C | 12.5°C | |
| OCT 10 | 14.6°C | 12.5°C | |
| OCT 11 | 14.2°C | 12.5°C | |
| OCT 12 | 14.3°C | 12.5°C | |
| OCT 13 | 12.5°C | 14.2°C | |
| OCT 14 | 12.5°C | 14.1°C | |
| OCT 15 | 12.5°C | 14.0°C | |
| OCT 16 | 12.5°C | 13.9°C | |
| OCT 17 | 12.5°C | 13.9°C | |
| OCT 18 | 12.5°C | 13.8°C | |
| OCT 19 | 12.5°C | 13.7°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 | 25°C | 28°C |
| August | 20°C | 24°C | 28°C |
| September | 18°C | 21°C | 25°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
October 13
October 14
October 15
October 16
October 17
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.