Saturday, July 18 (10:00 a.m.) Wisconsin DNR PM2.5 Smoke Advisory Through Monday, July 20 at Noon (Sheboygan County)
Sheboygan County, WI — The Wisconsin Department of Natural Resources (DNR) updated its statewide wildfire-smoke PM2.5 Air Quality Advisory at 10:00 a.m. Saturday, July 18. The advisory remains in effect for Sheboygan County until noon Monday, July 20.
DNR expects PM2.5 AQI levels to range from Unhealthy for Sensitive Groups (Orange) to Very Unhealthy (Purple). The National Weather Service air-quality alert for Wisconsin includes Sheboygan County and lists the same until-noon Monday end time.
What changes for sensitive groups (AQI by color)
- Very Unhealthy (Purple) — sensitive groups: Avoid all physical activity outdoors. Reschedule for a time when air quality is better or move activities indoors.
- Unhealthy for Sensitive Groups (Orange) — sensitive groups: Limit time outdoors. Do shorter/less intense activities, take more breaks, and watch for symptoms.
Wisconsin DHS lists sensitive groups as people with asthma, heart/lung disease, older adults, and children and teenagers. For people with asthma, DHS and the NWS guidance also emphasize following an asthma action plan and keeping quick-relief medicine handy.
Timing for weekend plans and Monday morning
- Saturday into Sunday (July 18–July 19): DNR expects smoke impacts to spread through the state, with statewide impacts expected by 6 a.m. Sunday, July 19.
- Monday, July 20 (until noon): Because the advisory does not end until 12:00 p.m., sensitive groups should keep workouts, practices, and outdoor errands indoors or rescheduled where possible—especially for Monday morning.
When to take it seriously
If you (or a family member) notices breathing symptoms such as coughing, shortness of breath, or chest tightness, move indoors and follow your health action plan.
For updates, check the latest air-quality forecast guidance on the DNR air-quality page and the NWS air-quality alert listing.
Have you seen a high AQI reading on a local monitor in Sheboygan County? Share the highest reading you’ve seen and whether your household is changing plans.
