Antioch, California Weather:
Wednesday, September 9, 2026
Sunny Weather
Day 91°
Night 63°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 7
Weather Forecast History
Last Year's Weather on This Day (September 9, 2025)
Foggy Weather

Day

79°

Night

63°

Wind

9 mph

Precipitation

49 %