Real-time Station List
The Caltrain Stations listed below link to a mobile friendly interface:

Zone 1 
San Francisco 
22nd Street 
Bayshore 
South San Francisco 
San Bruno 

Zone 2 
Millbrae Transit Center 
Broadway - weekend only 
Burlingame 
San Mateo 
Hayward Park 
Hillsdale 
Belmont 
San Carlos 
Redwood City 

Zone 3 
Menlo Park 
Palo Alto 
California Ave. 
San Antonio 
Mountain View 
Sunnyvale 

Zone 4 
Lawrence 
Santa Clara 
College Park 
San Jose Diridon 
Tamien - weekday commute service only

Zone 5 
Capitol - weekday commute service only
Blossom Hill - weekday commute service only

Zone 6 
Morgan Hill - weekday commute service only
San Martin - weekday commute service only
Gilroy - weekday commute service only