Godan verb with 'ru' ending
to fall (of rain, snow, ash, etc.)
Also: to come down
前線や低気圧の影響で、東北から九州にかけての広い範囲で雨が降っています。Due to the influence of a weather front and low-pressure system, rain is falling across a wide area from northeastern Japan to Kyushu.
東日本と西日本では大気の非常に不安定な状態が続き局地的に激しい雨が降るおそれがあり、気象庁は土砂災害や川の増水に十分注意するとと…The atmospheric conditions remain highly unstable in eastern and western Japan, with the potential for localized heavy rainfall, so the Japan Meteorological Agency is advising people to be very careful about landslides and rising river levels.