US Treasury yields edged higher for a second day as investors geared up for Federal Reserve Chairman Kevin Warsh's Friday speech in Jackson Hole, where some expect him to strike a hawkish tone.

Yields rose one to two basis points across maturities, led by longer-dated bonds, which have been under pressure amid concerns about inflation and the US fiscal outlook.

The movement reflects growing investor focus on potential shifts in monetary policy, with the Jackson Hole economic symposium serving as a key venue for Fed communications.

Market participants are closely watching Warsh's remarks for clues about future rate decisions, particularly given persistent inflation concerns and fiscal uncertainty.