Weather isn't covered by a keyword. It's in the Climate (CLMT) record. To find the one you want look in the Planet record and find the Biome your house is in. In that Biome record find the Climate record. The Climate record will contain a list of Weather Settings (WSLT) entries. You can remove them wholesale, getting rid of all fog by removing WeatherFogList, or edit the referenced WTHS record to remove just one type.
Note that this will affect multiple planets. There are some planets which have unique Climate records, but these are mostly in Sol System or have specific quest related content.
So: PNDT > BIOM > CLMT > WSLT > WTHS
Edit: Hazards are in the Biome record. Remove them there.