Weather phenomenon instrument

The utility model discloses a weather phenomenon instrument, comprising a support, an emitter and a scattering receiver arranged on the support. A light shield of a cylindrical structure has an opening in one end and is oppositely arranged to the scattering receiver and is fixed on the support. The opening end of the light shield and a receiving terminal of the scattering receiver are mounted oppositely and an end face of the opening end of the light shield is an inclined plane facing the other end to incline from the upper part to the lower part. When the scattering receiver faces sunlight or reflection objects, stray light such as sunlight and reflected light of reflection objects can be shielded by the light shield. That stray light converges to scattering photoelectric receiving devices by a scattering objective is reduced, thereby reducing the effect of stray light on photoelectric receiving devices and guaranteeing measurement precision of the weather phenomenon instrument.