San Mateo, California Weather:
Monday, April 20, 2026
Cloudy Weather
Day 63°
Night 52°
Precipitation 0 %
Wind 8 mph
Weather Forecast History
Last Year's Weather on This Day (April 20, 2025)
Cloudy Weather

Day

68°

Night

48°

Wind

7 mph

UV Index

8

Precipitation

0 %