Last updated: June 24, 2025
In Lemont, United States, the average temperature in August is a pleasant 23°C (73°F). Expect a minimum of 10°C (49°F) and a maximum of 34°C (94°F), making it a great time to explore. Keep in mind that the area experiences an average precipitation of 91 mm (3.6 in) over 12 days, contributing to the overall humidity of 81%. Whether you prefer sunny days or the occasional shower, there's something for everyone!
In August in Lemont, the average temperature is 23°C (73°F). The maximum can reach 34°C (94°F) and the minimum can be as low as 10°C (49°F). It's a great time to travel, as the weather is generally warm and comfortable for outdoor activities.
In Lemont in August, the precipitation amount is 91 mm (3.6 in) over a period of 12 days.
In Lemont in August, humidity is 81%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious while traveling and causing you to constantly seek out shade or a cool breeze for relief.
In Lemont in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Lemont.
UV Risk Categories
Weather in Lemont varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Lemont, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 61 mm (2.4 inches) | 82% | moderate |
| February Weather | -2°C (28°F) | 63 mm (2.5 inches) | 83% | moderate |
| March Weather | 4°C (40°F) | 89 mm (3.5 inches) | 84% | high |
| April Weather | 9°C (49°F) | 120 mm (4.7 inches) | 85% | very high |
| May Weather | 16°C (61°F) | 156 mm (6.1 inches) | 79% | very high |
| June Weather | 22°C (72°F) | 151 mm (6.0 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 116 mm (4.6 inches) | 80% | very high |
| August Weather | 23°C (73°F) | 91 mm (3.6 inches) | 81% | very high |
| September Weather | 20°C (68°F) | 85 mm (3.4 inches) | 80% | very high |
| October Weather | 12°C (55°F) | 131 mm (5.2 inches) | 82% | high |
| November Weather | 4°C (39°F) | 57 mm (2.3 inches) | 88% | moderate |
| December Weather | 1°C (33°F) | 54 mm (2.1 inches) | 84% | low |