Climate almanac
Lake Oswego
Oregon, United States · 45.42°, -122.67°
What is the weather like in Lake Oswego in May?
In May, Lake Oswego is typically 71°F (22°C) during the day and 49°F (9°C) at night. The month brings about 2.5 in (62 mm) of precipitation in total.
- Average high71°F (22°C)
- Average low49°F (9°C)
- Precipitation2.5 in (62 mm)
- Clear or mostly clear days7
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)