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San Mateo, California Weather:
Wednesday, March 18, 2026
Cloudy Weather
Day 59°
Night 45°
Precipitation 0 %
Wind 7 mph
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Sunny Weather

Day

59°

Night

41°

Wind

8 mph

UV Index

5

Precipitation

2 %