San Mateo, California Weather:
Sunday, August 16, 2026
Cloudy Weather
Day 72°
Night 57°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 9
Weather Forecast History
Last Year's Weather on This Day (August 16, 2025)
Cloudy Weather

Day

79°

Night

59°

Wind

14 mph

UV Index

40

Precipitation

25 %