Variable As Column In Cursor Select

I can't seem to get a cursor to work when I'm passing in a variable for a column name of the select statement. For example:

declare @col varchar(50)

set @col = 'Temperature'

declare notifycurs cursor scroll for
select @col from Table

Obviously this won't work correctly (since the result will simply be 'Temperature' instead of the actual float value for temperature). I tried to use quotes for the entire statement with an EXEC
(ie. exec('select '+@col+' from Table' )
but that gave me an error.

Is there a way to pass in a variable for a column name for a curor select statement????