Climate almanac
Johnston
Iowa, United States · 41.67°, -93.70°
What is the weather like in Johnston in June?
In June, Johnston is typically 85°F (29°C) during the day and 65°F (18°C) at night. The month brings about 4.4 in (111 mm) of precipitation in total.
- Average high85°F (29°C)
- Average low65°F (18°C)
- Precipitation4.4 in (111 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)