How many hours should the information update interval of the mobile weather forecast app be set?

Generally the default one is fine, once in the morning and once in the evening.

If you have an iPhone, go directly to the App Store and search for "Weather Forecast". One of the first five is from Minesage.

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After setting the city, you can view the weather for multiple days, and if there is a warning in the city you are in, or if the weather changes suddenly, you will be notified immediately.

And the interface is relatively simple and easy to understand,