Simi Valley, California Weather:
Tuesday, March 31, 2026
Sunny Weather
Day 75°
Night 46°
Precipitation 20 %
Wind 5 mph
UV Index (0 - 11+) 8
Weather Forecast History
Last Year's Weather on This Day (March 31, 2025)
Rainy Weather

Day

68°

Night

43°

Wind

9 mph

UV Index

4

Precipitation

49 %