I assume you are familiar with the Arduino IDE. When you open the weatherradio.ino firmware, there are several header files included. All configurations should be placed in config.h:
Enable DHT sensor by removing the comments from
//#define USE_DHT_SENSOR
Set the appropriate digital PIN of your Arduino where the DHT sensor is attached to and select the DHT type:
// DHT sensor family
#define DHTPIN 3 // Digital pin connected to the DHT sensor
//#define DHTTYPE DHT11 // DHT 11 - Uncomment whatever type you're using!
#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321 - Uncomment whatever type you're using!