Last updated: June 24, 2025
In Plainfield, United States, the average temperature in August hovers around 21°C (69°F), offering a pleasant climate for outdoor activities. However, be prepared for temperature fluctuations, with lows dipping to 6°C (43°F) and highs soaring to 32°C (91°F). Expect about 128 mm (5.0 in) of rainfall over approximately 12 days, contributing to an average humidity of 73%. Whether you're enjoying the warmth or braving the occasional shower, August captures the unique charm of Plainfield.
In August in Plainfield, the average temperature is 21°C (69°F). Maximum temperatures can reach 32°C (91°F), while the minimum can drop as low as 6°C (43°F). Overall, it's a great time to visit Plainfield for enjoyable and varied weather conditions.
In Plainfield in August, the precipitation amount is 128 mm (5.0 in) over the course of 12 days.
In Plainfield in August, humidity is 73%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat stifling and travel a bit more challenging, as the air is dense and can leave you feeling fatigued more quickly.
In Plainfield in August, 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 Plainfield.
UV Risk Categories
Weather in Plainfield varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Plainfield, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (19°F) | 39 mm (1.5 inches) | 89% | low |
| February Weather | -7°C (20°F) | 52 mm (2.0 inches) | 90% | moderate |
| March Weather | 1°C (33°F) | 62 mm (2.4 inches) | 87% | moderate |
| April Weather | 6°C (43°F) | 99 mm (3.9 inches) | 84% | very high |
| May Weather | 14°C (58°F) | 111 mm (4.4 inches) | 77% | very high |
| June Weather | 20°C (69°F) | 109 mm (4.3 inches) | 75% | very high |
| July Weather | 23°C (73°F) | 121 mm (4.7 inches) | 74% | very high |
| August Weather | 21°C (69°F) | 128 mm (5.0 inches) | 73% | very high |
| September Weather | 17°C (63°F) | 105 mm (4.1 inches) | 78% | high |
| October Weather | 9°C (49°F) | 107 mm (4.2 inches) | 84% | moderate |
| November Weather | 1°C (34°F) | 51 mm (2.0 inches) | 89% | moderate |
| December Weather | -4°C (26°F) | 50 mm (2.0 inches) | 87% | low |