In St. Louis, the National Weather Service reports areas of fog before 8 a.m., with conditions expected to improve later in the day. Skies are forecast to become mostly sunny, with a high near 63. West winds of 5 to 7 mph are expected to become light and variable during the afternoon. Humidity levels are reported at 96%.
Nighttime temperatures are forecast to drop to around 45 degrees, with light and variable winds becoming east at about 5 mph after midnight, as per the NWS. Skies are expected to remain partly cloudy. On Wednesday, conditions are forecast to be mostly cloudy, with high temperatures near 64 degrees.
For the remainder of the week and the holiday, St. Louis is expected to experience mostly cloudy conditions, except for Friday, which is forecast to be sunny with a high near 72. On Christmas Day, the NWS predicts mostly cloudy skies with a high near 66. Winds are expected to be light and variable, shifting to the south at around 6 mph in the afternoon.
Temperatures are forecast to rise through Saturday, reaching a high near 71 degrees, before dropping to lows around 38 that night. Sunday is expected to be mostly sunny with a high near 39, followed by a clear but cool Monday with a high near 29.
