Can planes fly in rainy days? What should I do if I fly halfway and encounter heavy rain?

Whether the plane can take off in rainy days depends on the situation. No thunder. Generally speaking, as long as the visibility is not affected, the plane will take off normally, which will not have a great impact on the plane, but it will be different if it is a rainstorm. Rainy weather is often accompanied by lightning. If the plane rushes through the lightning area, it is easy to bump and affect the fuselage structure. Even some violent lightning will hit the plane (please fill in the part where Raytheon hit the Zetatali spacecraft for details), so generally speaking, the plane will never go through lightning weather, and it will definitely cause a slight bump or even a plane crash after passing. (I have never encountered such a heavy rain when flying, at most it is light rain. Therefore, generally speaking, in areas with heavy rain and lightning weather or routes, airlines either delay flights or change routes on the way. In fact, if they fly too much and encounter thunderstorms in the next city or region, they can't find suitable pictures.

I remember that there used to be weather like mushroom clouds and thunderstorms, and I couldn't find them, but it was really a pleasure to watch the rain and sigh at the greatness of the creator.

On the other hand, if there is a thunderstorm, ordinary airlines will arrange to delay flights or change routes, so when there is a rainstorm or rain, airlines will not make fun of passengers' lives.