San Mateo, California Weather:
Thursday, September 3, 2026
Sunny Weather
Day 73°
Night 55°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 7
Weather Forecast History
Last Year's Weather on This Day (September 3, 2025)
Cloudy Night

Day

77°

Night

57°

Wind

8 mph

Precipitation

0 %