Q. Kavod Harav,
A follow-up to the shaila (1364) regarding opening the window near the plants – may one open the window just before the rain shower is about to begin, judging by looking at the sky and/or knowing the weather forecast (but it is not presently raining), even though in a few moments it will probably start raining and the water will go on the plants? It seems to me that opening a window before the rain shower has started is not any melacha whatsoever.

A. Horav Shlomo Miller’s Shlit’a opinion is that this is an indirect or grommo act and since his intention is to let in fresh air and not to water the plants, it is permitted.

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a