In American English:
"Situation" means "all of the facts, conditions, and events that affect someone or something at a particular time and in a particular place." (Merriam-Webster Online Dictionary for Mobile Devices) For example, "You may find yourself in a situation where you lose control of the vehicle." (Merriam-Webster Online Dictionary)
"Condition" means "the state in which something exists : the physical state of something." (Merriam-Webster Online Dictionary for Mobile Devices) For example, "Their weakened condition makes them more likely to get sick."(Merriam-Webster Online Dictionary)
Situation的定义：Definition of SITUATION
Condition的定义：Definition of CONDITION
