At 0642 GMT, the rand traded at 15.3360 against the dollar, around 0.2% weaker than its previous close. The currency had touched 15.2825 on Wednesday as strong commodity prices offered support.
"With the war still tentatively poised, I can't see a reason to be overly bullish risky assets just yet, despite the commodity play," Warrick Butler, chief trader at Standard Bank, wrote in a note.
"There is still too much uncertainty although at least we now know the cards the Fed is holding in their hands."
U.S. Federal Reserve Chair Jerome Powell said on Wednesday the central bank would begin "carefully" raising interest rates this month, but was ready to move more aggressively if needed - more or less the scenario traders have priced in.
In fixed income, the yield on the benchmark 2030 government bond was up 2.5 basis points to 9.57%, reflecting weaker prices.
(Reporting by Olivia Kumwenda-Mtambo; Editing by Sherry Jacob-Phillips)
