According to diplomatic sources, Zarif will meet his Pakistani counterpart Shah Mahmood Qureshi in a one-on-one meeting.
Zarif will also meet Prime Minister Imran Khan and the military leadership, the sources added.
Moreover, Japanese state minister Kazuyuki Nakane will also arrive in Islamabad today for a two-day visit where he will meet with Qureshi and other government officials.
On Wednesday, US Defence Secretary James Mattis confirmed Secretary of State Mike Pompeo and Chairman of the Joint Chiefs of Staff Committee General Joseph Dunford will visit Pakistan next week to meet PM Imran.
US military chief to accompany Pompeo to Pakistan next week
Speaking at a news briefing at the Pentagon, Mattis said Pompeo and General Dunford will meet with PM Imran and other Pakistani leaders and discuss relations between the two countries.
The two dignitaries are expected in Islamabad for a one-day visit on September 5.