Pagi (Pagi)
Squall, wuther (related to Old Norse hviða: ‘squall of wind’ so Pagimäe would be better than Vihurimäe, see Tuulemäe), either a single, strong gust of wind, sometimes accompanied by a change of direction and rain or hail, or a storm with a series of such gusts. Anecdote about street-naming in Tallinn: while the original name for Pagi, Sopi, was eliminated for being too similar to its next-door neighbour, Soodi, the street-name commission checked with emergency departments to see whether Pagi and Paagi would be confused. However, with the first in Mustjõe and the second in Paljassaare, there didn’t seem much risk. My own take on this is, given Estonia’s obsession with the length of its vowels, there’s no way they’d confuse the two.
Pakase (Pakane)
Severe cold, frost, Pakasetaat, lit. ‘old man frost’, is a local variant of Jack Frost. Likewise, Kalevipoja’s (and putting a genitive onto a genitive must look strange to an Estonian) father has been known to be called Kalev-taat, see Vilisuu. Part of a bad-weather group. See also Rahe.
Pärituule (Pärituul)
Fair wind, wind due astern, tailwind, lit. a ‘from’ wind. One of a wind-themed group. See Tuuleveski.
Pikse (Pikne)
Once an otherworldly ruler of the weather, also and otherwise known as Äike, Kõu, Paristaja, or Pikker (see Pikri) (although Kõu and Pikker are usually considered to be brothers, sons of Uku), apparently related to Lithuanian Perkūnas (from PIE *perkwunos, giving also rise to Celtic Taranis and Irish Tuireann, Norse Thor, Slavic Perun and, it seems, Vedic Parjanya), a Baltic god of thunder associated with the oak (*perkwus is PIE for oak [cf. Latin quercus], fir or ‘wooded mountain’, and also signifying toughness or strength); today, a thunderstorm, more commonly known as äike. Non-existent street (or woodland path?) next to Välgu, another non-existent street (they’ll clear the forest one day, unless they’re hoping that an appeal to the god of electro-celestial tree-hugging might do it for them). Pikne (Pitkne, old spelling) was also another term for snake.