St. Louis weather is headed into another wet stretch, and Grant Dade says some areas could see more than three inches of rain from Friday evening through Saturday. The First Alert Chief Meteorologist said the primary concern shifts after midnight, when the storms are expected to take on a flooding threat.
People in the region have already dealt with a very rainy day and multiple flash flood warnings. That sets up a weekend system with gusty winds, damaging storm potential, and heavy rain, with Flood Watches in effect until Saturday night.
Grant Dade and the overnight shift
Dade’s warning centers on timing as much as totals. The first round of storms is expected Friday evening, but the main issue changes after midnight, when the risk tilts toward flooding rather than just rain and wind.
That matters for anyone planning late travel or trying to cross low-lying roads. A storm that drops repeated rain over the same area can produce fast rises in water levels even before the weekend system has fully passed.
Saturday afternoon storms
Saturday adds another layer. Scattered storms will develop during the afternoon hours as temperatures reach the mid-to-upper 80s, and any strong storm that forms then has the potential to produce strong winds capable of causing damage.
A cold front will push through the region late Saturday, which keeps the focus on another round of unsettled weather before the system starts to weaken. The period from Friday evening through Saturday is the main window for the heaviest impacts.
Flood Watches through Saturday night
Flood Watches remain in effect until Saturday night, leaving little room for the ground to recover before the next rounds of rain. More than three inches of rain in some areas would be enough to widen the flooding threat beyond isolated spots, especially where water collects quickly.
The system moves out Sunday, bringing a quieter weather pattern to the Heartland, though a slight chance for a few showers remains. Highs will reach the middle 80s Sunday, so the weekend does not end with a hard stop, only a gradual easing of the storm threat.
