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San Mateo, California Weather:
Thursday, December 18, 2025
Cloudy Weather
Day 61°
Night 46°
Precipitation 25 %
Wind 1 mph
UV Index (0 - 11+) 1
Weather Forecast History
Last Year's Weather on This Day (December 18, 2024)
Cloudy Weather

Day

59°

Night

41°

Wind

4 mph

UV Index

2

Precipitation

0 %