With little domestic data on the horizon, Weston said the kiwi would continue to be pushed around by offshore events and likely stay rangebound.
Swap rates at the long end of the curve with later maturities also moved fairly sharply following the rise in US bond yields, he said.
The two-year swap rate remained well anchored, edging up 1 basis point to 2.19 per cent while the 10-year swap rose 5 basis points to 3.19 per cent.
"The big force out there is the move higher, first in euro yields and then US 10-year yields breaking that 2.5 per cent mark," Weston said.
The kiwi fell to 80.43 yen from 80.85 yen yesterday as the BOJ's announcement continued to stoke demand for the yen.
The local currency rose to A91.49c from A91.31c yesterday and traded at 4.6713 Chinese yuan from 4.6161 yuan. It was little changed at 59.97 euro cents from 59.96 cents yesterday and increased to 52.92p from 52.87p yesterday.