Climate almanac
Marshalltown
Iowa, United States · 42.05°, -92.91°
What is the weather like in Marshalltown in May?
In May, Marshalltown is typically 73°F (23°C) during the day and 53°F (12°C) at night. The month brings about 5.2 in (132 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low53°F (12°C)
- Precipitation5.2 in (132 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)