I'd like you to check the following sentence.
#1 The weather forecast says that it will rain this evening.
Is #1 natural? If not, would you give me other expressions?
Which is more appropriate to use in this sentence, "this evening" or "tonight"?
Your sentence is totally correct. If you want to sound more like a weather report on TV you can also say:Originally Posted by Unregistered Lina
Weather forecast calls for rain this evening.
There is rain in the forecast for later on this evening.
Forecast for tonight: rain.
this evening/tonight are both OK.
Rain later tonight.
Rain is anticipated later this evening.
Tonight will bring rain.