Last updated: June 24, 2025
In July, the average temperature in Arlington Heights, United States hovers around 17°C (63°F), with a comfortable minimum of 7°C (45°F) and an occasional maximum reaching 34°C (93°F). Expect a bit of rain with a total precipitation of 37 mm (1.5 in) spread over 6 days. The air can feel quite humid, averaging around 85%, making it an ideal time for light clothing and some indoor activities.
In July in Arlington Heights, the average temperature is 17°C (63°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 7°C (45°F). This makes Arlington Heights a great destination for travelers looking for mild weather with the possibility of warm days and cooler nights.
In Arlington Heights in July, the precipitation amount is 37 mm (1.5 in) over the course of 6 days.
In Arlington Heights in July humidity is 85%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit stifling and encouraging frequent breaks in shaded areas or air-conditioned spaces for travelers.
In Arlington Heights in July, 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 July’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 |