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Simi Valley, California Weather:
Wednesday, March 18, 2026
Sunny Weather
Day 66°
Night 43°
Precipitation 0 %
Wind 9 mph
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Sunny Weather

Day

68°

Night

45°

Wind

9 mph

UV Index

6

Precipitation

25 %