Within the near future; soon (usually within days to a few weeks). Used in both formal notices and everyday speech.
近日中に会議の日程をメールでお送りします。
I will send the meeting schedule by email in the near future.
天気予報によれば雨は近日中に止むそうだ。
According to the weather forecast, the rain should stop soon.
試験の結果は近日中に発表されます。
The exam results will be announced soon.