St. Louis

St. Louis Weather Update Highlights Sunny Skies Today with Weekend Thunderstorms and a Cooling Trend Ahead

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Published on October 17, 2025
St. Louis Weather Update Highlights Sunny Skies Today with Weekend Thunderstorms and a Cooling Trend AheadSource: Google Street View

The National Weather Service in St. Louis, Missouri, is forecasting a party cloudy sky today with the temperature peaking at a comfortable 83 degrees, while tonight's lows are expected to hover around 65 degrees with light south winds continuing to persist throughout the evening, as per the latest report.

Looking ahead, the weekend may not be the ideal time for outdoor plans, tomorrow is expected to bring showers and a possible thunderstorm with a high near 80, the south wind will be picking up, gusting as high as 21 mph and with a near certain chance of precipitation at 90%, and similarly, tomorrow night will likely maintain the rainy theme, showers and possible thunderstorms continuing up until 1 am, then a drop in temperature to a low around 51, the southwest winds are also expected to shift west after midnight with gusts that can reach up to 24 mph, according to the NWS's detailed forecast.

Sunday will gift residents with a sunny reprieve and cooler highs near 65, while gusts could reach up to 28 mph as we move into a crisper atmosphere, the clear night promises lower temperatures around 46, and for those eager for more favorable conditions, Monday is forecasted to offer sunny skies with highs approaching 74 degrees.

Continuing the trend, mostly clear nights with lows in the low 50s and sunny days with highs in the upper 60s to low 70s are predicted for the early part of next week; however, by Wednesday night, there's a 30 percent chance of showers, and a lingering 20 percent chance of rain persists into Thursday, "Mostly sunny, with a high near 68," the National Weather Service states.

In terms of safety, the Hazardous Weather Outlook for the region emphasizes the potential for strong to severe thunderstorms tomorrow afternoon and evening, although there's no indication that spotters will need to be activated, it's a chance for folks in central Missouri and southwest Illinois to remain vigilant as the weekend approaches.