Indianapolis residents can expect a wet and foggy Christmas, with the National Weather Service reporting 100% chance of rain and patchy fog before 9 am. Temperatures are likely to stay around a cool 45 degrees with calm winds shifting southeast in the afternoon. While visibility might increase, the light rain is set to continue into the evening. Following a damp Christmas Day, tonight’s forecast brings more rain, particularly before 7 pm. As clouds persist, temperatures are expected to drop to a low near 42 degrees. The southeast winds will likely calm down, and while the chance of precipitation decreases to 60%, only meager amounts of new rainfall are anticipated, as detailed by NWS.