San Bernardino, California Weather:
Wednesday, September 23, 2026
Sunny Weather
Day 97°
Night 64°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 6
Weather Forecast History
Last Year's Weather on This Day (September 23, 2025)
Cloudy Night

Day

100°

Night

66°

Wind

2 mph

Precipitation

2 %