Climate Carmel - Indiana. Â°C | Â°F. Climate data for carmel 3 e, Longitude: -86.058, Latitude: 39.9614. Average weather Carmel, IN - 46032 - 1981-2010 normals. Jan: January, Feb: February, Mar: March, Apr: April, May: May, Jun: June, Jul: July, Aug: August, Sep: September, Oct: October, Nov: November, Dec: December.