Sunday, July 26 into Monday, July 27: NWS flags severe storms at times and 97–103°F heat for Sheboygan County
Sheboygan County Weather Watch: NWS Milwaukee/Sullivan updated its Hazardous Weather Outlook at 10:00 AM CDT Friday, July 24, 2026 for forecast area WIZ052.
NWS says there is potential for severe thunderstorms at times Sunday afternoon through Monday evening. The outlook also notes spotter activation may be needed at times Sunday afternoon into Monday evening. NWS further warns that hot and humid conditions return Sunday and Monday, with heat index values in the 97 to 103°F range possible.
Sunday, July 26: highest heat index readings + afternoon storm chance
For Sheboygan County (WIZ052), Sunday is forecast to be very warm and humid. NWS calls for a 20 percent chance of light showers and thunderstorms in the afternoon. The forecast also highlights the heat timing: highest heat index readings (98 to 103) are expected in the late morning and afternoon.
Sunday night, July 26, and Monday, July 27: 40% storm chances
NWS forecasts a 40 percent chance of light showers and thunderstorms on Sunday night and again on Monday.
Practical safety reminders for the weekend
- Have a quick-change plan: NWS spotter activation may be needed as storms develop, so be ready to adjust outdoor plans if thunderstorms start forming.
- Lightning rule: If you hear thunder, get indoors right away—NWS notes there is no safe outdoor place when thunderstorms are in the area.
- Heat rule for Sunday late-morning/afternoon: Hydrate, seek shade/cooling, and limit strenuous outdoor activity during the hottest window.
As Sunday afternoon approaches, keep an eye on updated NWS messages and local alerts in case storm timing or intensity changes.
