Possible Clues:

• We shall get a bit of heat and even bits of rain, according to him
• Meteorologist
• Don protects the worker from one of those predicting climate change perhaps
• Forecasts the temperature to blow up raw methane
• TV forecaster
• Met chap with new heart after surgery, embracing mother
• Met chap in Zimbabwe at her mansion
• He could be interested in the bar and a glass
• Warn me heat is out of control? That could be him
• One concerned with clemency