Climate almanac
Saint John
Missouri, United States · 38.71°, -90.35°
What is the weather like in Saint John in August?
In August, Saint John is typically 86°F (30°C) during the day and 68°F (20°C) at night. The month brings about 4.5 in (115 mm) of precipitation in total.
- Average high86°F (30°C)
- Average low68°F (20°C)
- Precipitation4.5 in (115 mm)
- Clear or mostly clear days13
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)