Last updated: June 24, 2025
In Arlington Heights, United States, the average temperature in May hovers around 19°C (66°F), with a range of 0°C (33°F) to 33°C (92°F). Expect about 127 mm (5.0 in) of precipitation spread over 14 days, contributing to an average humidity of 81%. Be prepared for a mix of comfortable and cooler days!
In May in Arlington Heights, the average temperature is 19°C (66°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 0°C (33°F). This diverse climate makes Arlington Heights an ideal destination for travelers seeking a mix of warm and cool experiences.
In Arlington Heights in May, the total precipitation amount is 127 mm (5.0 in), occurring over the course of 14 days.
In Arlington Heights in May, humidity is 81%. With an average temperature of 19°C (66°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel both muggy and slightly stifling, often leading to a need for frequent breaks in the shade.
In Arlington Heights in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more 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 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 | 1°C (33°F) | 80 mm (3.2 inches) | 88% | moderate |
| February Weather | 3°C (37°F) | 107 mm (4.2 inches) | 88% | moderate |
| March Weather | 7°C (45°F) | 137 mm (5.4 inches) | 87% | high |
| April Weather | 12°C (55°F) | 119 mm (4.7 inches) | 85% | very high |
| May Weather | 19°C (66°F) | 127 mm (5.0 inches) | 81% | very high |
| June Weather | 23°C (74°F) | 131 mm (5.2 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 110 mm (4.3 inches) | 81% | very high |
| August Weather | 24°C (75°F) | 89 mm (3.5 inches) | 73% | very high |
| September Weather | 21°C (71°F) | 81 mm (3.2 inches) | 73% | very high |
| October Weather | 15°C (59°F) | 96 mm (3.8 inches) | 78% | high |
| November Weather | 7°C (44°F) | 99 mm (3.9 inches) | 89% | moderate |
| December Weather | 4°C (39°F) | 110 mm (4.3 inches) | 87% | moderate |