Simi Valley, California Weather:
Saturday, April 18, 2026
Rainy Weather
Day 75°
Night 52°
Precipitation 57 %
Wind 9 mph
UV Index (0 - 11+) 9
Weather Forecast History
Last Year's Weather on This Day (April 18, 2025)
Cloudy Weather

Day

63°

Night

45°

Wind

8 mph

UV Index

4

Precipitation

9 %