San Bernardino, California Weather:
Thursday, September 3, 2026
Sunny Weather
Day 93°
Night 66°
Precipitation 4 %
Wind 6 mph
UV Index (0 - 11+) 8
Weather Forecast History
Last Year's Weather on This Day (September 3, 2025)
Night

Day

100°

Night

72°

Wind

2 mph

Precipitation

1 %