When this spell is cast by the druid, the temperature surrounding the druid can be altered by 9 degrees Fahrenheit per level of experience of the spell caster, either upwards or downwards. Thus, a 10th level druid could raise the surrounding temperature from 1 to 90 degrees, or lower it by from 1 to 90 degrees. The spell lasts for a number of turns equal to 4 plus the level of experience of the druid, i.e. when cast by a 10th level druid the spell persists for 14 turns.