After a day with heavy rain, travel could become treacherous late Sunday night into the Monday morning commute, according to a special weather statement issued by the National Weather Service (NWS) on Sunday night. Temperatures in Shelton and across southwestern Connecticut \u201care expected to fall below freezing late tonight and remain at or below freezing into Monday morning,\u201d the NWS said. \u201cAny standing water on roadways will begin to freeze, making patching black ice likely \u2014 especially on secondary and untreated roads as well as bridges and overpasses,\u201d according to the NWS statement. \u201cMotorists should be prepared for the potential of suddenly changing road condition late tonight into the Monday morning commute.\u201d Many puddles on the roads Sunday\u2019s high was in the 40s and was at 39 degrees in Shelton at 9 p.m. After a long day of rain in the area, there are a lot of puddles along the roads and in parking lots. Slightly more than 1 inch of rain was recorded Sunday in Stamford. The low tonight is expected to be 31 in Shelton, with a high only in the mid-30s on Monday, according to the NWS. It should be mostly sunny on Monday. The weather for New Year\u2019s Eve night in Shelton is predicted to be partly cloudy with a low of 19. No precipitation is expected on Tuesday night into Wednesday morning.