Springfield, Mo. – A prolonged stretch of summer heat is set to intensify across southern Missouri, with the hottest conditions expected Monday and Tuesday as heat index values climb as high as 108 degrees. The combination of rising temperatures and increasing humidity will create dangerous conditions for anyone spending extended time outdoors.
According to the National Weather Service in Springfield, temperatures will steadily warm through the weekend before peaking early next week. High temperatures are expected to reach 90 degrees Saturday, 92 degrees Sunday, 95 degrees Monday and 98 degrees Tuesday in Springfield. Joplin is forecast to climb from 91 degrees Saturday to 98 degrees Monday before reaching 100 degrees Tuesday, while West Plains and Rolla/Vichy are also expected to reach the middle to upper 90s.
As humidity increases, afternoon heat index values will range from 100 to 108 degrees, with the highest readings expected Monday and Tuesday. Joplin could see heat index values around 105 degrees Tuesday, while Springfield may reach 103 degrees. West Plains could approach 101 degrees, and Rolla/Vichy is expected to near 98 to 99 degrees.
Isolated showers and thunderstorms remain possible Saturday and Sunday, but they are not expected to provide widespread or long-lasting relief from the heat.
Residents are encouraged to stay hydrated, take frequent breaks in air-conditioned spaces and avoid strenuous outdoor activities during the hottest part of the afternoon. Never leave children or pets in parked vehicles, and check on older adults and neighbors who may be more vulnerable to heat-related illnesses.
The National Weather Service will continue monitoring heat conditions, and additional heat-related advisories may be issued if forecast heat index values continue to increase early next week.
