San Mateo, California Weather:
Friday, March 20, 2026
Cloudy Weather
Day 57°
Night 45°
Precipitation 20 %
Wind 9 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (March 20, 2025)
Cloudy Weather

Day

63°

Night

46°

Wind

8 mph

UV Index

5

Precipitation

0 %