San Mateo, California Weather:
Friday, October 30, 2026
Cloudy Weather
Day 64°
Night 55°
Precipitation 9 %
Wind 8 mph
UV Index (0 - 11+) 3
Weather Forecast History
Last Year's Weather on This Day (October 30, 2025)
Cloudy Night

Day

66°

Night

54°

Wind

7 mph

Precipitation

40 %