Its debatable, but I think in all my years doing it, when we lived on our farm growing up hunting Civil War relics during the summer weād get times where weād get very little, and as soon as it rained we went over the same spots, and those crappy signals were now seemingly amplified and sounded so much better. People think itās crazy, but the rain almost seems to put a halo effect on ferrous, non ferrous targets. Iād say itās not a bad idea[emoji23] not unless that rain caused your area to be extremely hot and muggy. Which if youāre in Ohio it should be fairly nice outside. As far as water goes, it canāt hurt, the only time youāll have to worry about your detector is if you drop the control box/screen into water.