Weather
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Main: Jeija
Lisc: LGPL
Text:
Snow cover: WTFPL
Rain & snow: CC-BY-SA 3.0
By TeddyDesTodes
Link: https://github.com/Jeija/minetest-mod-weather
Lightning
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Main: Auke Kok
Lisc: LGPL 2.1+
Text: CC-BY-SA 4.0
Audi: CC-BY-SA
thunder.1.ogg by hantorio
thunder.2.ogg by juskiddink
thunder.3.ogg by IllusiaProductions
Link: https://github.com/minetest-mods/lightning