The cold snap has canceled overnight Fastrack repairs on the G train this week.
Repairs slated for Monday and Tuesday were canceled before temperatures were expected to drop to 8 degrees.
The repairs will be conducted tomorrow and Thursday night through Friday morning.
During the repairs, service will be suspended between Bedford-Nostrand avenues and Church Avenue.
There will be free shuttle buses running between the Bedford-Nostrand avenues stop and the Jay Street-Metrotech station, where riders can take the F train to Church Avenue.