Last updated: June 24, 2025
In August, the average temperature in Arlington Heights, United States is a pleasant 22°C (72°F). Expect minimums around 11°C (52°F) and maximums soaring up to 33°C (92°F). During this time, 146 mm (5.7 in) of precipitation typically falls over 15 days, accompanied by an average humidity of 62%. Whether you're packing your bags or planning activities, be prepared for a mix of warm and rainy days!
In August in Arlington Heights, the average temperature is 22°C (72°F). Maximums can reach 33°C (92°F), while minimums can dip as low as 11°C (52°F). This makes Arlington Heights a pleasant destination for travelers seeking comfortable weather with some warmth during the day and cooler evenings.
In Arlington Heights in August, the precipitation amount is 146 mm (5.7 in) over the course of 15 days.
In Arlington Heights in August, humidity is 62%. With an average temperature of 22°C (72°F), this humidity feels like a warm, enveloping embrace that adds a slight stickiness to the skin, making outdoor activities refreshing yet requiring occasional breaks to hydrate and stay cool while exploring.
In Arlington Heights 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 Arlington Heights.
UV Risk Categories
Weather in Arlington Heights varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Arlington Heights, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 76 mm (3.0 inches) | 87% | moderate |
| February Weather | 0°C (33°F) | 109 mm (4.3 inches) | 85% | moderate |
| March Weather | 3°C (39°F) | 97 mm (3.8 inches) | 85% | high |
| April Weather | 10°C (49°F) | 120 mm (4.7 inches) | 83% | very high |
| May Weather | 15°C (60°F) | 144 mm (5.7 inches) | 75% | very high |
| June Weather | 20°C (69°F) | 106 mm (4.2 inches) | 73% | very high |
| July Weather | 24°C (75°F) | 139 mm (5.5 inches) | 65% | very high |
| August Weather | 22°C (72°F) | 146 mm (5.7 inches) | 62% | very high |
| September Weather | 19°C (66°F) | 120 mm (4.7 inches) | 66% | very high |
| October Weather | 13°C (56°F) | 143 mm (5.6 inches) | 79% | high |
| November Weather | 5°C (42°F) | 95 mm (3.7 inches) | 87% | moderate |
| December Weather | 1°C (34°F) | 112 mm (4.4 inches) | 85% | low |