Last updated: June 24, 2025
In Arlington Heights, United States, the average temperature in May hovers around 12°C (54°F), with lows dipping to 1°C (34°F) and highs reaching up to 29°C (84°F). Expect about 113 mm (4.4 in) of precipitation over 12 days, contributing to an average humidity of 82%. Prepare accordingly for a mix of mild temperatures and moderate rain! 🌧️
In May in Arlington Heights, the average temperature is 12°C (54°F). Maximums can reach 29°C (84°F) and minimums can be as low as 1°C (34°F). This variability in temperature makes it essential for travelers to pack layers to stay comfortable while exploring.
In Arlington Heights in May, the precipitation amount is 113 mm (4.4 in) spread over 12 days.
In Arlington Heights in May humidity is 82%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and sweat-inducing, which can be quite uncomfortable for traveling.
In Arlington Heights in May, 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 May’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 |