Champaign, Illinois – Central Illinois, including Champaign, is under the grip of brutal heat and humidity this weekend, with heat index values soaring past 110°F through early next week. Along with the extreme temperatures, scattered severe thunderstorms are expected, adding to the discomfort and potential hazards.
Heat Advisory and Severe Weather Forecast
The National Weather Service in Lincoln has issued a heat advisory for areas south of I-72, where temperatures are expected to hover between 90°F and 95°F through Monday. However, with the high humidity, the “feels-like” temperature will reach up to 113°F in cities like Champaign, Decatur, and Effingham. The combination of extreme heat and humidity will create dangerous conditions for residents, particularly during the afternoon hours.
Isolated strong to severe storms are expected each afternoon through Saturday, with storm chances ranging from 20% to 70%. These storms could bring gusty winds, heavy rainfall, and the potential for localized flooding and power outages.
Health Risks and Safety Tips
With high heat and humidity, central Illinois faces a higher risk of heat exhaustion, especially with nighttime lows in the mid-70s offering little relief. Urban areas with poor overnight cooling are particularly vulnerable. Road crews and emergency services are on alert, and residents are urged to stay cautious during the peak heat hours from 10 a.m. to 6 p.m.
To stay safe, the National Weather Service recommends wearing light-colored clothing, staying hydrated, and limiting outdoor activities. Those without air conditioning should check on neighbors and seek cooling centers if available.
Power Outages and Storm Damage
As storms move through the region, there remains a risk of power outages due to downed trees and other storm damage. These outages could extend into Sunday, creating further challenges in the already sweltering conditions.
Relief by Mid-Week
The intense heat will continue through Monday, but relief is in sight. A noticeable drop in heat and humidity is expected by mid to late next week, with temperatures cooling off significantly.
Five-Day Outlook for Champaign, Illinois:
Friday: High 95°F, Heat Index 110+, 20–40% chance of strong afternoon storms
Saturday: High 90°F, Heat Index 106+, 50–70% chance of storms, muggy overnight
Sunday: High 93°F, Heat Index 111, scattered storms, lows in the mid-70s
Monday: High 94°F, Heat Index 112, isolated storm chance (15%)
Tuesday: High 91°F, slight cooling trend begins, 15% storm chance
