Sunday, August 9: Possible Strong to Severe Storms for Sheboygan-to-Port Washington Waters
Sheboygan County, WI — August 8, 2026.
The National Weather Service Milwaukee/Sullivan office is flagging a possible round of afternoon and evening thunderstorms for Sunday, August 9, across the Lake Michigan nearshore waters from Sheboygan to Port Washington.
Loading current temperature...
7-Day Weather Forecast
The NWS Hazardous Weather Outlook issued at 6:08 a.m. CDT Saturday, August 8, said some Sunday storms could become strong to severe. Storm chances may continue into early next week.
Saturday is not flagged for hazardous weather
The same outlook does not identify Saturday, August 8, as an active hazardous-weather period. Marine users should still check the latest zone forecast for any changes to winds, waves, advisories or storm timing.
Check the marine forecast before Sunday departures
The affected nearshore area includes waters used by recreational boaters, anglers, charter operators, marinas and shoreline visitors between Sheboygan and Port Washington. Conditions can change quickly when thunderstorms develop.
Before leaving shore Sunday, check the latest National Weather Service marine forecast for zone LMZ643. Boat operators should be prepared to delay a trip, return early or seek safe shelter if storms develop. Shoreline visitors should monitor updates before heading to the lake and while spending time near the water.
The NWS Milwaukee/Sullivan local marine information page includes forecasts, radar, observations and boating-safety resources for Lake Michigan users.
Have a local weather update, plan change or community notice to share? Visit the site’s Publicize page.
