The rupee closed at 87.42-48 to the dollar, compared with Wednesday's close of 87.47-52 and dealers expect the pressure to remain on the currency in the short to medium term.
"The rupee's weakest traded level was 87.53 per dollar, but some support was seen around 87.50," said a dealer at a local bank.
"However, there still is pressure on the rupee and it is likely to weaken further."
The rupee hit a previous record intra-day low of 87.50 on Wednesday.
Though there are some inflows, especially of remittances from overseas Pakistanis, dealers said the gloomy outlook of Pakistan economy was affecting the local unit.
Stalled payments from a bailout programme by the International Monetary Fund (IMF) are also hammering the rupee.
Copyright Reuters, 2011