St. Louis

St. Louis Welcomes Mixed Bag of Weather for Washington's Birthday Week

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Published on February 16, 2026
St. Louis Welcomes Mixed Bag of Weather for Washington's Birthday WeekSource: Google Street View

The National Weather Service in St. Louis has forecasted a pleasant mix of sunshine and clouds for the week of Washington's Birthday, according to their latest update. As reported, the city will experience mostly sunny skies with a high near 66 degrees Fahrenheit on the holiday itself, accompanied by light and variable winds turning south later in the morning. St. Louisans can expect the gentle shift from the current partly cloudy skies, sitting at 43 degrees with a humidity level at 82%, to more temperate weather as the week progresses.

For those planning evening escapades tonight, the NWS has projected a partly cloudy night with a comfortable low around 44 degrees. A moderate south wind, around 7 mph, will be embracing the city as the moon journeys across the sky. Looking toward tomorrow, clouds will advance, bringing a high near 65. South winds will pick up, blowing 6 to 15 mph and could gust as high as 26 mph, ushering in a change in weather patterns as the NWS notes.

Shifting gears into tomorrow night, a 20 percent chance of showers enters the forecast after midnight indicating that umbrellas should stand close to the door. As the wind continues, a robust south wind of 15 to 17 mph, with even higher gusts, will herald the coming of clouds before parting to a partly cloudy sky and a low of 58 degrees. According to the NWS's detailed forecast, Wednesday will shine brightly once again with sunny skies reaching a high near 73 degrees, and a west wind pushing between 8 to 15 mph, gusting to similar strengths as earlier days.

As Thursday approaches, a slight chance of showers sprouts up, escalating to a chance of thunderstorms after noon, despite a mostly sunny outset and highs mirroring Wednesday's at near 73 degrees. By night, a modest 20 percent chance of showers exists before the stroke of midnight, eventually parting to reveal mostly clear skies and a cooler low around 39 degrees reports the NWS. St. Louis' weather, while serving us a potpourri of conditions, holds onto a constant rhythm of change - a melody of elements harmonizing under the baton of nature.

The latter part of the week mellows out, returning to mostly sunny skies on Friday with a daytime high near 51 degrees. Friday night brings a 20 percent chance of showers, setting the stage for a partly cloudy night with lows dipping to around 33 degrees. The weekend forecast maintains this chance of showers at 30 percent for both Saturday's partly sunny day and Saturday night's partly cloudy skies, which will see lows close to the freezing mark at around 30 degrees. Wrapping up the week on Sunday, there's a slight 20 percent chance of showers amidst the mostly sunny skies with a high near 43 degrees, finishing off a week where the weather dances between winter's chill and the warm whispers of spring's approach.