Full Breakdown
Persistent Rainfall Keeps Southern Wisconsin at Flood Risk
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Current Rainfall and Flood Threat
Showers and isolated thunderstorms are moving across far-southern Wisconsin this afternoon and into the night, with some storms expected to linger near the Wisconsin-Illinois border. A Flood Watch, issued by the National Weather Service, remains active for parts of southern Wisconsin until early Sunday morning. The watch notes that only modest additional rain could trigger flooding, as the region already recorded widespread rainfall of one-third of an inch, with localized totals reaching up to five inches overnight and into the early morning.
Rainfall Totals and Forecasted Impacts
The recent precipitation has already saturated soils and swollen streams, creating conditions where even light additional rain may cause localized flooding. While severe weather is not anticipated, heavy rainfall continues to be the primary concern for residents and emergency managers. The First Alert Day, a designation used by local authorities to highlight heightened flood potential, will stay in effect for the remainder of the day.
Upcoming Weather Outlook
Sunday is expected to be quieter, with only a few lingering showers in the morning and mostly dry conditions later. Skies will stay mostly cloudy, with occasional sunshine moving toward central Wisconsin. High temperatures are forecast in the mid-60s °F, accompanied by breezy northeast winds around 15 mph. The period from Monday through Wednesday will bring cool, cloudy, and breezy weather, punctuated by occasional showers but also ample dry intervals. By the latter half of the work week, temperatures should climb toward the 70 °F average, offering more sunshine.
Public Safety Guidance
Residents in the Flood Watch area are advised to monitor local alerts, avoid low-lying roads, and be prepared for rapid changes in water levels. The continued First Alert status underscores the need for vigilance until the rain eases and soils begin to dry later in the week.