Go to the little house in the north side of goldenrod and she will say a sentence on how happy your Pokemon is, if you want your eevee you want to here the lady say something by the lines of "your Pokemon really trusts you" or "your Pokemon is really happy!! you must be a good owner"
Evolutions` Eevee Simple. Eevee does not evolve at a certain level. Eevee+ Fire Stone=Flareon Eevee+ Water Stone=Vaporeon Eevee+ Thunder Stone=Jolteon Eevee+ Level up at maximum happiness in daytime=Espeon Eevee+ Level up at maximum happiness in nightime=Umbreon Eevee+ Level up at mossy rock=Leafeon Eevee+ Level up at ice path=Glaceon Hope I Helped! :D
You have to get eevee to max happiness and level him up during night.
I believe that you have to get the eevee to max happiness ( or really high ) and level it up in the nighttime.
Level Eevee up with a happiness value at 220 during the night
First you have to get Eevee from Bebe. Then boost Eevee's happiness to the max. Then level it up and it will evolve.
You must make Eevee's friendship (happiness) level at or above 220, then level Eevee up during the day (before night). (as of Pokemon Black/White) having Eevee in your party and walking, surfing, cycling will raise its happiness; leveling up will increase happiness; using Vitamins (calcium, protein, etc.) will increase happiness. if eevee faints, its happiness decreases, as well as other factors.
Jolteon: Give Eevee a Thunderstone Vaporeon: Give Eevee a Waterstone Flareon: Give Eevee a Firestone Espeon: Max out Eevee's Happiness during the day time Umbreon: Max out Eevee's Happiness during the night time Leafeon: Level Eevee Up in Eterna Forest Glaceon: Level Eevee Up in Route 216 or close to Snowpoint City
To make Eevee evolve into an Umbreon, you have to level it up with high happiness at night.
I believe that you have to get the eevee to max happiness ( or really high ) and level it up in the nighttime.
some of them require stones, and others require happiness
Sorry to say but, eevee doesnt evovle into umbreon by level. The only way to make it evolve at night with high happiness
Eevee doesn't have a set level to evolve into Umbreon. All you have to do to evolve it is max out its happiness at night. ~KKMG1