Bonjour
Aujourd'hui il fait froid. Today "it's" cold ==> présent
Demain, il fera froid. Tomorrow, it "will be" cold. ==> futur
A- sera = will be (this isn't the correct translation in French)
B- neigera = will snow
D- aura = will have
C- fera = verb faire futur
in French the expression to speak about the weather is the verb "faire" at the 3rd person singular
Aujourd'hui il fait beau = Today, the weather is nice. (présent)
Demain, il fera froid = Tomorrow,the weather will be cold. (futur)
Hier,il a fait chaud = Yesterday, it was hot. (passé = passé composé)
hope this helps ☺☺☺