Downey, California Weather:
Thursday, September 17, 2026
Cloudy Weather
Day 84°
Night 66°
Precipitation 1 %
Wind 5 mph
UV Index (0 - 11+) 7
Weather Forecast History
Last Year's Weather on This Day (September 17, 2025)
Rainy Weather

Day

90°

Night

72°

Wind

5 mph

Precipitation

90 %