According to forecasters, the worst is over and the temperatures will now gradually increase. In Minnesota, the temperature is now a mere minus 30 degrees as compared to the minus 50 degrees a day earlier. Meteorologist say that the temperatures are expected to rise above zero by the end of this week. There were fewer flight cancellations on Wednesday as compared to nearly 2700 flights being cancelled on Tuesday. Twenty three people across six states have lost their lives because of the cold.