San Mateo, California Weather:
Wednesday, July 22, 2026
Cloudy Weather
Day 70°
Night 57°
Precipitation 2 %
Wind 9 mph
UV Index (0 - 11+) 11
Weather Forecast History
Last Year's Weather on This Day (July 22, 2025)
Rainy Weather

Day

70°

Night

55°

Wind

8 mph

Precipitation

40 %