The National Weather Service in St. Louis has forecasted a day of changing skies for the region, initially offering a chance of rain and thunderstorms this morning, which ought to subside shortly after 9 am, leading to cloudy conditions that are expected to clear up as the day progresses, with a high of 62 degrees anticipated.
Looking ahead into the evening, the skies are predicted to remain clear, and with the wind slowing down to a mere 3 to 8 mph, tonight will be characterized by cooler temperatures, dropping to around 36 degrees. At the same time, the following day is set to see increasing clouds with highs near 52 despite starting with calm conditions.
According to the detailed forecast from the NWS, Tuesday night will likely bring rain, mainly before midnight, with mostly cloudy conditions enveloping the area and lows roughly around 41 degrees, followed by a subsequent mix of sun and partial cloudiness on Wednesday, and a marked dip in the temperature come nightfall, heading to a low near 26.
The remainder of the week looks to remain mostly sunny yet brisk with daytime highs lingering in the mid-40s, dropping to chilly lows in the mid-20s at night, but the weekend warms slightly with daytime conditions tending toward being mostly sunny and a high near 36 degrees, while the nights will be mainly clear with temperatures taking a plunge to around 21 degrees.
In the broader view of potential hazards, the National Weather Service's Hazardous Weather Outlook spans a greater area including parts of eastern and central Missouri as well as west central and southwest Illinois, stating "There is a chance of thunderstorms through this morning, mainly across southeast Missouri and southwest Illinois," whilst specifying that "The chance for thunderstorms Tuesday night and Wednesday morning" persists for those regions, though no spotter activation is expected at this time.
