Last updated: June 24, 2025
In August, the average temperature in Arlington Heights, United States hovers around 18°C (64°F), with a minimum dipping to 5°C (42°F) and reaching a maximum of 35°C (95°F). Expect about 38 mm (1.5 in) of precipitation spread over 6 days, resulting in an average humidity of 77%. Prepare for a month that balances warmth and moisture, perfect for enjoying the unique charm of the region!
In August in Arlington Heights, the average temperature is 18°C (64°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 5°C (42°F). It's advisable to pack both lightweight clothing for the warm days and layers for the cooler nights when traveling during this time.
In Arlington Heights in August, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.
In Arlington Heights in August humidity is 77%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it feel muggy and potentially uncomfortable for traveling, as sweat clings to your skin and the air thickens around you.
In Arlington Heights in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to 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 | 3°C (37°F) | 314 mm (12.4 inches) | 87% | low |
| February Weather | 2°C (36°F) | 325 mm (12.8 inches) | 86% | moderate |
| March Weather | 5°C (41°F) | 256 mm (10.1 inches) | 88% | moderate |
| April Weather | 8°C (47°F) | 214 mm (8.4 inches) | 86% | high |
| May Weather | 12°C (54°F) | 113 mm (4.4 inches) | 82% | very high |
| June Weather | 15°C (59°F) | 104 mm (4.1 inches) | 82% | very high |
| July Weather | 17°C (63°F) | 37 mm (1.5 inches) | 85% | very high |
| August Weather | 18°C (64°F) | 38 mm (1.5 inches) | 77% | very high |
| September Weather | 14°C (58°F) | 175 mm (6.9 inches) | 76% | high |
| October Weather | 8°C (47°F) | 302 mm (11.9 inches) | 88% | moderate |
| November Weather | 5°C (42°F) | 404 mm (15.9 inches) | 88% | moderate |
| December Weather | 2°C (37°F) | 365 mm (14.4 inches) | 89% | low |