Climate almanac
Oak Forest
Illinois, United States · 41.60°, -87.74°
What is the weather like in Oak Forest in May?
In May, Oak Forest is typically 72°F (22°C) during the day and 53°F (12°C) at night. The month brings about 5.2 in (131 mm) of precipitation in total.
- Average high72°F (22°C)
- Average low53°F (12°C)
- Precipitation5.2 in (131 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)