As the city ushers in the New Year under a veil of mostly cloudy skies, St. Louis residents can expect the weather to slowly clear up during the day. The National Weather Service in St. Louis reports a chilly start to 2026, with the temperature hovering at 34°F and the humidity reaching a dense 89%. For those hoping to start their resolutions with an outdoor jog or a breath of fresh January air, the NWS forecasts that conditions will gradually become more amiable.
The day is to unfold with the clouds making way to allow some sun through, and a high approaching 38 degrees is anticipated, with calm winds in the wake of a gentle north breeze. As night descends, the air will once again don its cloudy cloak, with the mercury expected to dip to around 29 degrees, according to NWS detailed forecast. The city is set to embrace a calm wind, giving a respite to those weary from blustery holiday storms.
Looking ahead to Friday and into the weekend, the sky will wear its mostly cloudy aspect, with Friday's high nudging slightly warmer at 41 degrees. A calm wind is to again turn east at about 6 mph in the morning. As the weekend progresses, St. Louisans can enjoy more sunlight with "mostly sunny" skies described for both Saturday and Sunday, sporting highs in the low 40s, as per the NWS.
The early inklings of the week indicate a fortuitous turn, promising a sunnier disposition with Monday's high expected to soar to a balmy 60 degrees. The nocturnal sphere will remain mostly cloudy, however, with temperatures hovering around the low 40s. The weather's pattern seems to hold steady through Wednesday, revealing intervals of sunshine interspersed with clouds, and highs remaining in the upper 50s.
