Simi Valley, California Weather:
Saturday, October 31, 2026
Rainy Weather
Day 66°
Night 59°
Precipitation 87 %
Wind 6 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (October 31, 2025)
Night

Day

79°

Night

54°

Wind

5 mph

Precipitation

0 %