Last updated: June 24, 2025
In October, the average temperature in Ballwin, United States hovers around 15°C (59°F), showcasing a delightful balance between cool and warm. However, be prepared for a temperature range that can dip as low as -4°C (26°F) or soar to a sizzling 34°C (93°F). This month experiences an average precipitation of 106 mm (4.2 in) over 11 days, paired with a humidity level of 76%. Don’t forget your umbrella and stay hydrated!
In October in Ballwin, the average temperature is 15°C (59°F). The maximum can reach 34°C (93°F), while the minimum can drop as low as -4°C (26°F). This variety in temperatures means travelers should be prepared for both warm days and potentially chilly nights.
In Ballwin in October, the precipitation amount is 106 mm (4.2 in) spread over a duration of 11 days.
In Ballwin in October humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.
In Ballwin in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Ballwin.
UV Risk Categories
Weather in Ballwin varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Ballwin, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (33°F) | 76 mm (3.0 inches) | 82% | moderate |
| February Weather | 2°C (36°F) | 82 mm (3.2 inches) | 80% | moderate |
| March Weather | 8°C (47°F) | 131 mm (5.2 inches) | 80% | high |
| April Weather | 13°C (55°F) | 128 mm (5.0 inches) | 80% | very high |
| May Weather | 19°C (67°F) | 141 mm (5.5 inches) | 82% | very high |
| June Weather | 25°C (77°F) | 95 mm (3.8 inches) | 83% | extreme |
| July Weather | 26°C (80°F) | 93 mm (3.6 inches) | 81% | very high |
| August Weather | 25°C (76°F) | 135 mm (5.3 inches) | 80% | very high |
| September Weather | 22°C (72°F) | 57 mm (2.2 inches) | 76% | very high |
| October Weather | 15°C (59°F) | 106 mm (4.2 inches) | 76% | high |
| November Weather | 7°C (45°F) | 73 mm (2.9 inches) | 85% | moderate |
| December Weather | 4°C (40°F) | 60 mm (2.4 inches) | 86% | moderate |