I haven't done these lessons in a good bit, but I've been a bit lazy in my studies so in addition to giving everyone a taste of language lessons, it also helps me remember some vocabulary. I'd figure we start with something simple like weather which in Japanese is 天気(Tenki).
Good weather would be すばらしい 天気 (Subrashii Tenki) and bad weather would be ひどい 天気 (Hidoi Tenki).
Atmosphere is 大気 (Taiki)
Cloud is 雲(Kumo).
Air is 空気 (Kuki)