Simi Valley, California Weather:
Wednesday, September 2, 2026
Cloudy Weather
Day 93°
Night 63°
Precipitation 4 %
Wind 5 mph
UV Index (0 - 11+) 8
Weather Forecast History
Last Year's Weather on This Day (September 2, 2025)
Night

Day

99°

Night

68°

Wind

6 mph

Precipitation

0 %