Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_87 ( high_hill_zone VARCHAR, mid_hill_zone VARCHAR )

### Question ###
Which mid-hill zone has a slightly warm temperature?

### Accurate SQL ###

SELECT high_hill_zone FROM table_name_87 WHERE mid_hill_zone = "slightly warm temperature"