ag wx logo Ag Wx The Weather Desk
Go Pro

San Mateo, California Weather Forecast

San Mateo County 37.55°N, 122.31°W Pop. 104,430

San Mateo is in San Mateo County, California (pop. 104,430). Below you'll find current conditions, radar, observed precipitation with YTD anomalies, a 7-day forecast, GDD accumulations, and the NWS written forecast.

Active Weather Alerts

Current Stats & Observations

Ag Wx Pro Save locations, 15-day forecasts, daily briefings, and professional-grade meteorological tools
Get Ag Wx Pro

NWS Forecast

Nearby Forecasts

Redwood City, CA South San Francisco, CA Daly City, CA San Leandro, CA Hayward, CA
All California forecasts (193) → Interactive forecast tools →