Tsuihou Sareta Koushaku Reijou wa, Tenkyohou wo Shinagara Henkyou no Chi de Nonbiri Kurasu: Tenkyohou Skill wo Ikashita Tsuihou Seikatsu no Tanoshimi-kata

Weza, a duke's daughter who can predict the weather 100% accurately, serves her country as the royal weather forecaster, protecting the people from many disasters. However, when her stepsister develops the same skill, she is quickly stripped of her fiancé and her position as forecaster, and is even sentenced to exile. Weza is left homeless in a remote area, but is picked up by a taciturn, handsome man from the agricultural guild, and begins a relaxing, comfortable life as a weather forecaster...!? Her life is happier after her exile, a Cinderella story of a weather forecaster!

(Source: Gau Gau, translated)