Residents across South Dakota are dealing with their first major heat and humidity wave of the summer. A Heat Advisory is in effect for eastern South Dakota and nearby parts of northwest Iowa, warning people to take precautions to avoid heat-related health issues. The advisory is active from 1 p.m. to 8 p.m. on Tuesday.
What to Expect During the Heat Advisory
The National Weather Service in Sioux Falls says temperatures will range from the upper 80s to mid-90s. However, the real problem is the humidity, which will make it feel even hotter.
The heat index—how hot it feels when humidity is added to the temperature—will be much higher than the actual temperature. This makes it difficult for your body to cool down through sweating.
Affected Areas in South Dakota and Nearby Cities
The heat advisory includes most of eastern South Dakota and some areas in northwest Iowa. Some of the cities under this alert include:
Sioux Falls
Brookings
Mitchell
Yankton
Worthington (in Iowa)
These areas will see the worst effects from the high heat and humidity during the afternoon and early evening.
Health Risks and Safety Tips
High heat and humidity increase the chances of heat exhaustion or heat stroke, especially for:
Outdoor workers
Children playing outside
Athletes in training
Older adults
People without air conditioning
To stay safe during this time, officials recommend:
Drinking plenty of water to stay hydrated
Wearing light and loose-fitting clothes
Avoiding outdoor activities during peak heat (especially late afternoon)
Taking breaks in the shade or indoors when working or playing outside
How Long Will It Last?
This is the first major humid spell of the summer for many people in the region. The uncomfortable weather is expected to last until at least 8 p.m. Tuesday. If the heat continues, new advisories may be issued for Wednesday as well.
The combination of high temperatures and extreme humidity makes conditions risky across South Dakota and nearby areas. People should be extra careful, especially if they need to spend time outside.
Stay hydrated, dress appropriately, and check on family members or neighbors who might be vulnerable to the heat. Even though summer is expected to be warm, days like these can turn dangerous if proper precautions are not taken.
