Rapid City, SD – A dangerous stretch of heat is gripping western South Dakota and spreading south into central Nebraska, as back-to-back advisories warn of extreme temperatures and high humidity through Friday evening. According to the National Weather Service, heat index values are expected to reach 104 in parts of South Dakota—including Philip, Winner, and Mission—until 7 p.m. MDT (8 p.m. CDT) Thursday. Nebraska cities like Grand Island, Kearney, and York could see heat indices soar to 109 on Friday between 1 p.m. and 8 p.m. CDT.
Local agencies urge residents across both states to avoid outdoor activity during peak heat, stay hydrated, and seek air-conditioned spaces. Rural communities and major highways may be especially at risk, with increased pressure on utilities and potential for heat-related power disruptions. Emergency management teams are asking residents to check on seniors and neighbors, and never leave children or pets in parked vehicles. The risk for heat exhaustion and dehydration is highest during late afternoon hours.
The heat is expected to subside slightly after sunset Friday, but additional advisories could be issued if the pattern holds. Residents in both South Dakota and Nebraska should remain alert for updates and follow official safety guidance as conditions evolve.
