As such the police have warned the public not to participate in the political talk.
The ceramah, which is expected to draw thousands of supporters, will be held in Simpang, Taiping.
Taiping district police chief Raja Musa Raja Razak was reported in Bernama today as saying that the venue was not suitable to hold a ceramah as it was located near the main road.
He added that the ceramah would affect traffic flow and public safety.
"Police will take stern action against those who stage or participate in the assembly," he said.
He also said that police personnel would be deployed to the area to prevent any untoward incident.
The ceramah is part of Anwar's visit to Perak and Kedah today and tomorrow.
Anwar will be sharing the stage with ousted Menteri Besar Mohd Nizar Jamaluddin tonight.
They are expected to talk about the ongoing political impasse in the state as a result of the appointment of the Barisan Nasional government.
Anwar is also expected to touch in the forthcoming by-election in Bukit Gantang on April 7.
While Umno has named its candidate for the seat, Pakatan has yet to officially name their choice. Nizar is believed to be one of the early favourites to contest for the parliamentary seat.
On Friday, Anwar will be in Kedah where he is widely expected to name S Manimaran as the party's candidate for the Bukit Selambau state seat by-election.