Montano rejoined County from West Ham last week after impressing during a two-month stint at Meadow Lane earlier this season in which the 20-year-old Colombian scored four goals in 12 games for Martin Allen's side.
The postponement of the matches against Stevenage and Rochdale has given leading scorer Jeff Hughes more time to recover from the knock that ruled him out against Walsall a fortnight ago.
County called off the game against Dale on Saturday but the club are confident that the match will take place on Tuesday night.
A statement on the official website said: "With the recent cold weather easing and temperatures back above zero, the groundstaff have removed the frost covers and are happy with how things are looking.
"There is every reason to be optimistic that the game will go ahead and the message is that we are expecting the game to be on."