Sadeennusteisiin

Sadeennusteisiin is the illative plural form of the Finnish noun sadeennuste, meaning “rain forecast.” The word sadeennuste itself is a compound of sade (“rain”) and ennuste (“forecast”). The nominative plural is sadeennusteet, the illative plural is sadeennusteisiin, the genitive is sadeennusteiden, and the partitive is sadeennusteita. The illative plural is used to indicate direction toward or reference to multiple rain forecasts.

In practice, sadeennusteisiin appears mainly in formal or technical contexts such as meteorological reports, weather portals, or written descriptions that require a precise grammatical case. It is less common in everyday speech, where speakers typically use the base plural sadeennusteet or paraphrase with phrases like sään ennusteet, sääennusteet, or simply sade-ennusteet.

Related terms include sadeennusteet (nominative plural) and sääennusteet (weather forecasts), with analogous case forms in Finnish. See also Finnish grammar on noun cases and illative.