San Mateo, California Weather:
Sunday, March 22, 2026
Cloudy Weather
Day 70°
Night 50°
Precipitation 4 %
Wind 7 mph
UV Index (0 - 11+) 6
Weather Forecast History
Last Year's Weather on This Day (March 22, 2025)
Cloudy Weather

Day

63°

Night

48°

Wind

11 mph

UV Index

4

Precipitation

40 %