inclemency vs weather condition

inclemency and weather condition both are nouns.

Word	Noun	Adjective	Verb	Adverb
inclemency	Yes	No	No	No
weather condition	Yes	No	No	No

As nouns, weather condition is a hypernym of inclemency; that is, weather condition is a word with a broader meaning than inclemency:

inclemency: weather unsuitable for outdoor activities
weather condition: the atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation

Other hypernyms of inclemency include atmospheric condition, conditions, weather.

inclemency (noun)	weather condition (noun)
excessive sternness	the atmospheric conditions that comprise the state of the atmosphere in terms of temperature and wind and clouds and precipitation
weather unsuitable for outdoor activities