Rush Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Rush Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Rush Lake today is 12.9°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 | 14.5°C | 12.5°C | |
| OCT 6 | 14.2°C | 12.5°C | |
| OCT 7 | 13.3°C | 12.5°C | |
| OCT 8 | 13.8°C | 12.5°C | |
| OCT 9 | 13.0°C | 12.5°C | |
| OCT 10 | 13.1°C | 12.5°C | |
| OCT 11 | 12.3°C | 12.5°C | |
| OCT 12 | 13.0°C | 12.5°C | |
| OCT 13 | 12.5°C | 12.9°C | |
| OCT 14 | 12.5°C | 12.9°C | |
| OCT 15 | 12.5°C | 12.8°C | |
| OCT 16 | 12.5°C | 12.8°C | |
| OCT 17 | 12.5°C | 12.8°C | |
| OCT 18 | 12.5°C | 12.8°C | |
| OCT 19 | 12.5°C | 12.8°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 | 0°C | 3°C | 6°C |
| February | 0°C | 4°C | 9°C |
| March | 0°C | 4°C | 8°C |
| April | 3°C | 7°C | 12°C |
| May | 9°C | 16°C | 23°C |
| June | 16°C | 22°C | 27°C |
| July | 21°C | 24°C | 28°C |
| August | 20°C | 24°C | 28°C |
| September | 18°C | 21°C | 24°C |
| October | 6°C | 13°C | 19°C |
| November | 3°C | 8°C | 12°C |
| December | 1°C | 4°C | 8°C |
Rush Lake: Water Temperature by Location
Rush Lake: Weather Forecast
October 13
October 14
October 15
October 16
October 17
October 18
Location & Local Information
Rush Lake in Minnesota follows the familiar thermal cycle of many shallow Midwestern lakes. In summer the surface often warms into the comfortable range of roughly 70–80°F (21–27°C) on warm days, though deeper spots and cooler summers can keep parts of the water nearer to the mid‑60s°F (around 18°C). Late spring and early summer temperatures typically run about 50–65°F (10–18°C) as the water stratifies, while autumn sees a steady decline into roughly 40–60°F (4–16°C) before winter sets in. During winter, ice formation brings surface water temperatures to near freezing, about 32–39°F (0–4°C), and under‑ice conditions remain very cold until thaw.
Swimming at Rush Lake is generally possible and commonly practiced in the warmer months, provided there is public access or permission from landowners and local rules are followed. Warm summer surface temperatures make recreational swimming pleasant, but conditions can change with weather, currents, or cooler water at depth. Authorities may restrict swimming for safety or water‑quality reasons such as heavy algal blooms or hazardous debris. Cold water presents hypothermia risk even in spring or fall, and winter ice swimming requires special precautions and local guidance. Checking current local advisories and conditions is recommended before entering the water.