https://www.cgsse.it/calendario-scioperi
That's a Data Base of notified strikes in all sectors and all over Italy. A strike can be called off at the last minute. Or blocked by the Government. Or the union that called that strike could be totally irrelevant in the region where you are. Or the strike could involve only cargo trains. Or, since striking is not mandatory, the crew of the train you are taking could not strike and go to work.
In other words, you can google translate that page but you wouldn't get any useful information since you don't know how the system works.
Millions of Italians take trains any day, nobody checks the list of notified strikes. Do the same and relax, if a strike happens and you are taking a Regional train you'll either depart before 9 AM / after 6 PM. If you are taking one of Trenitalia's Freccias, they rarely strike even if Trenitalia is a state owned company.
The airport trains of Milan and Rome are guaranteed to run during a strike.