Climate almanac
Simi Valley
California, United States · 34.27°, -118.78°
What is the weather like in Simi Valley in October?
In October, Simi Valley is typically 79°F (26°C) during the day and 57°F (14°C) at night. The month brings about 0.5 in (13 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low57°F (14°C)
- Precipitation0.5 in (13 mm)
- Clear or mostly clear days23
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)