The WR140 mower isn’t built to work in the rain and it doesn’t handle wet grasses well. Landroid has rain sensors that help it detect rain and return to its charging base until the weather is clearer and much drier. If it starts to rain just before a scheduled mowing time, the tool will delay the mowing cycle and send a notification to your app.It’s important to always schedule your Landroid to work in clear and dry weather to avoid any weather-induced damage.