ST. LOUIS | CGN News is publishing a city weather brief for St. Louis using official National Weather Service forecast data. This is a planning snapshot for readers, commuters, families and event organizers, not a severe-weather alert unless a separate official alert is listed.
Today and tonight
St. Louis today: Chance of showers and thunderstorms, partly sunny, high near 86°F. Southwest wind around 3 mph. Chance of precipitation 50%.
St. Louis tonight: Chance of showers and thunderstorms, low around 73°F. South wind around 5 mph. Chance of precipitation 40%, tapering to a slight chance late overnight.
Planning notes
St. Louis readers should plan for a humid, unsettled pattern with scattered storm chances rather than all-day rain. Outdoor plans should keep lightning safety in mind, especially around parks, riverfront events and youth sports. Roads may turn slick under heavier downpours, and low-lying areas should be monitored if storms repeat.
Forecasts can change quickly. Readers should check current National Weather Service forecasts, warnings and local emergency information before making travel, school, work, beach, road or event decisions.
What the forecast means for readers
St. Louis readers should treat the forecast as unsettled rather than continuously stormy. A 50% chance during the day and 40% chance at night means some locations may see rain and thunder while others have longer dry periods. That pattern can be frustrating for outdoor events because conditions may change block by block or hour by hour.
Lightning safety is the main concern with thunderstorm chances. Parks, pools, riverfront events, youth sports and outdoor work should have a shelter plan. Drivers should also watch for brief downpours that reduce visibility or create slick pavement, especially on interstate ramps and bridge approaches.
What could change
If storms train over the same areas, localized flooding concerns can increase. If coverage remains scattered, the day may still offer usable outdoor windows. Readers should monitor NWS updates and local radar close to event time rather than relying only on the morning forecast.
Additional Reporting By: National Weather Service; NOAA