St. Louis

St. Louis Braces for Showers and Thunderstorms as NWS Issues Weather Alerts

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Published on September 23, 2025
St. Louis Braces for Showers and Thunderstorms as NWS Issues Weather AlertsSource: Unsplash/ Artturi Jalli

St. Louis residents should brace themselves for a bout of inclement weather as the National Weather Service (NWS) forecasts a high likelihood of showers and thunderstorms today and continuing into midweek. According to NWS St. Louis, today's weather includes an 80% chance of precipitation with storms likely to occur after 3pm, alongside patchy morning fog. While the high is predicted near 82 degrees, the calm winds in the morning will shift to a southward direction at a pace of 5 to 8 mph.

As for tonight, the skies will remain troubled, with showers and potential thunderstorms forecasted before 4 am, followed by likely showers and more patchy fog after 2 am. The low temperature is expected to hover around 67 degrees, with a subsequent northeast wind shift at 5 to 7 mph after midnight. Wednesday carries a 60% precipitation probability, with showers and possible thunderstorms again in the forecast post 1 pm, and a high near 75 degrees.

The hazardous weather isn't reserved for just today—local residents should stay vigilant through Wednesday evening, as the potential for thunderstorms lingers across the region. The NWS Hazardous Weather Outlook also raises attention to a Dense Fog Advisory effective until 9 am this morning in certain parts of Missouri and Illinois. Visibility in those areas could reduce to a quarter-mile or less.

Looking towards the latter half of the week, chances of showers decline to 20 percent on Thursday, with a promise of mainly sunny skies and a high around 77. The remainder of the week steers toward clearer skies and warmer temperatures, climaxing in a sunny weekend with highs inching towards the mid-80s. In spite of the initial tumult, glimpses of a serene autumn are on the horizon for St. Louis, manifesting as perfect sunny days turning into crisp, clear evenings with lows around 59.