risk of rain(redirected from a chance of precipitation)
risk of (some inclement weather)
A significant chance of some kind of unpleasant weather, such as rain, snow, lightning, etc., occurring. I just heard that there's a risk of rain tomorrow. I hope our football game doesn't get canceled. You should never set off on a hike when there's a risk of lightning.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
risk of rainand risk of showers; risk of thunder(-storms)
a chance of precipitation. (Used only in weather forecasting. There is no "risk" of hazard or injury involved.) And for tomorrow, there is a slight risk of showers in the morning. There is a 50 percent risk of rain tonight.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.