Lake Monticello — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Monticello, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Monticello today is 28.6°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 |
|---|---|---|---|
| JUN 23 | 27.4°C | 26.2°C | |
| JUN 24 | 28.9°C | 26.2°C | |
| JUN 25 | 29.0°C | 26.2°C | |
| JUN 26 | 29.0°C | 26.2°C | |
| JUN 27 | 29.3°C | 26.2°C | |
| JUN 28 | 29.0°C | 26.2°C | |
| JUN 29 | 28.4°C | 26.2°C | |
| JUN 30 | 28.6°C | 26.2°C | |
| JUL 1 | 30.0°C | 28.7°C | |
| JUL 2 | 30.0°C | 28.7°C | |
| JUL 3 | 30.0°C | 28.8°C | |
| JUL 4 | 30.0°C | 28.9°C | |
| JUL 5 | 30.0°C | 29.0°C | |
| JUL 6 | 30.0°C | 29.0°C | |
| JUL 7 | 30.0°C | 29.1°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 | 6°C | 10°C | 14°C |
| February | 6°C | 11°C | 15°C |
| March | 8°C | 14°C | 21°C |
| April | 12°C | 18°C | 24°C |
| May | 20°C | 24°C | 27°C |
| June | 23°C | 26°C | 30°C |
| July | 25°C | 30°C | 35°C |
| August | 26°C | 29°C | 32°C |
| September | 25°C | 29°C | 32°C |
| October | 22°C | 25°C | 27°C |
| November | 14°C | 18°C | 22°C |
| December | 8°C | 11°C | 15°C |
Lake Monticello: Water Temperature by Location
Lake Monticello: Weather Forecast
July 1
July 2
July 3
July 4
July 5
Location & Local Information
Lake Monticello in Texas experiences typical East Texas reservoir temperatures that shift through the year. In winter surface temperatures often fall into the mid-40s to mid-50s °F (about 7–13 °C). During spring the water warms into the mid-50s to low 70s °F (roughly 13–22 °C) as air temperatures moderate. Summer brings the warmest conditions, with surface readings commonly ranging from the mid-70s to mid-80s °F (around 24–30 °C) and occasionally climbing into the upper 80s °F (about 31–32 °C) during heat waves. In autumn the lake cools back down through the 60s to 50s °F (15–12 °C). These ranges are seasonal averages for shallow surface water and can vary with weather, depth, and time of day.
Swimming at Lake Monticello is typically allowed in appropriate areas but depends on local access rules and advisories. Many residents and visitors swim from shore, docks, or beaches where private property or community regulations permit it; public lifeguards are uncommon so swimming is generally at your own risk. Warm months offer comfortable conditions for bathing, but higher temperatures also raise the chance of algal blooms and reduced water quality, so checking current water advisories and obeying posted signage is important. Basic safety precautions—swimming with a companion, avoiding boat traffic, and being mindful of depth and submerged hazards—help reduce risks.