Chicago Under Heat and Severe Weather Alert

Chicago Braces for Final Day of Intense Heat Before Storm Relief

By Archyde News Desk

The Chicago area is set to endure another day of oppressive heat and humidity on thursday. This sweltering conditions are expected to finally break with the arrival of showers and possibly severe storms.

A heat advisory remains in effect for the entire Chicago region through Thursday night. An approaching cold front is forecasted to bring cooler temperatures and much-needed rain to the area.

The Storm Prediction Center has placed the entire Chicago area at a “marginal” risk for severe weather.This is the lowest of five threat levels on their scale, indicating a slight chance of hazardous conditions.

Forecasting models suggest the primary concern with any developing showers and storms will be heavy rainfall. This could lead to flash flooding in certain locations.Gusty winds are also a possibility, according to the NBC 5 Storm team.

Heat indices, which soared above 100 degrees Wednesday, are predicted to reach similar levels.Highs will be in the 90s, with heat indices potentially exceeding 110 degrees, especially in the far western suburbs.

The duration of this heat wave is subject to change. Forecast models indicate a mix of clouds and sun may start the day. However, showers and thunderstorms could develop and move through in the early afternoon, potentially ending the heat wave sooner.

A more widespread threat of showers and potentially strong thunderstorms is anticipated for the late afternoon or evening. Heavy rain and gusty winds are possible with any storms that materialize, as reported by the NBC 5 Storm Team.

Following the passage of the cold front,temperatures are expected to return to seasonal averages on Friday. expect lower humidity and readings in the low-80s.

This period of relief may be brief, as another warm-up is slated for Saturday, with temperatures reaching the low-90s. Temperatures could climb again on Monday, potentially settling in the mid-90s. A subsequent cooling trend is anticipated for the latter half of next week, with temperatures returning to around 80 degrees, according to long-range forecast models.

Frequently Asked Questions

What is the main threat from the storms?

The primary threat from the developing storms is heavy rain, which could lead to flash flooding.

When will the heat break?

The heat is expected to begin breaking on thursday with the arrival of showers and storms, with temperatures returning to seasonal averages on Friday.

Will it be cooler next week?

There will be a brief warm-up over the weekend, but a cooling trend is expected in the second half of next week.

What are your plans for the changing weather? share your thoughts in the comments below, and don’t forget to share this update with your friends and family!

What are the specific symptoms of heat exhaustion and how do they differ from heatstroke?

Current Conditions & Forecast

As of July 24, 2025, Chicago is under a severe weather alert, primarily due to an escalating heatwave and the potential for strong thunderstorms. The National Weather service has issued an Excessive Heat Warning for the city and surrounding areas, predicting heat index values exceeding 105°F (40.6°C).Alongside the heat, there’s a risk of severe thunderstorms developing this afternoon and evening, potentially bringing damaging winds, heavy rainfall, and localized flooding. Residents are urged to take immediate precautions.

Understanding the Heatwave: Risks & Impacts

The current heatwave poses meaningful risks to public health, notably for vulnerable populations.

Heat Exhaustion & heatstroke: Prolonged exposure to high temperatures can lead to heat exhaustion (symptoms include heavy sweating, weakness, dizziness) and the more serious heatstroke (a medical emergency characterized by high body temperature, confusion, and loss of consciousness).

Air Quality Concerns: High temperatures often exacerbate air pollution,impacting individuals with respiratory conditions like asthma. Ozone levels are expected to be elevated.

Infrastructure Strain: The heat can strain the power grid, potentially leading to power outages. It also impacts transportation infrastructure, such as railway tracks.

Vulnerable Populations: The elderly, young children, individuals with chronic illnesses, and outdoor workers are especially vulnerable to heat-related illnesses.

Severe Thunderstorm Threat: What to Expect

The approaching thunderstorms are a separate but related concern.

Damaging Winds: Straight-line winds exceeding 60 mph are possible, capable of downing trees and power lines.

Heavy Rainfall & Flash Flooding: Intense rainfall rates could lead to flash flooding in low-lying areas and urban environments.

Hail: while not the primary threat, hail is absolutely possible with the stronger storms.

Lightning: Lightning strikes are always a danger during thunderstorms.

Safety Measures: Protecting Yourself & Your Family

Taking proactive steps is crucial during this severe weather event.

During the Heatwave:

1. Stay Hydrated: Drink plenty of fluids,even if you don’t feel thirsty. Avoid sugary drinks and alcohol.
2. Seek Air Conditioning: Spend time in air-conditioned environments. If you don’t have air conditioning at home, visit a cooling center (see resources below).
3. Limit Outdoor Activity: Avoid strenuous activity during the hottest part of the day.If you must be outdoors, wear light-colored, loose-fitting clothing and a hat.
4. Check on Neighbors: Especially those who are elderly or have health conditions.
5. Never Leave Children or Pets in Cars: Temperatures inside a vehicle can rise rapidly to dangerous levels.

During the Thunderstorms:

1. Seek Shelter: Move indoors to a sturdy building.
2. Stay Away from Windows: close windows and doors.
3. Avoid Water: do not swim or engage in water activities during a thunderstorm.
4. Unplug Electronics: Protect electronic devices from power surges.
5. If Outdoors, Find Low Ground: If caught outdoors, crouch down in a low-lying area, away from trees and metal objects.

Cooling Center Locations & Emergency Resources

The City of Chicago has activated a network of cooling centers to provide relief from the heat.

Cooling Centers: A list of open cooling centers can be found on the City of Chicago website: https://www.chicago.gov/city/en/sites/emergency-management-communications/home.html (this link is a placeholder and should be updated with the actual 2025 link).

Emergency Management: For emergency assistance, call 311 or 911.

American Red Cross: The American Red Cross is providing support and resources: https://www.redcross.org/local/illinois/chicago.html (This link is a placeholder and should be updated with the actual 2025 link).

ComEd outage Reporting: Report power outages to ComEd: https://www.comed.com/ (This link is a placeholder and should be updated with the actual 2025 link).

Chicago’s History with Extreme weather

Chicago has a history of experiencing both extreme heat and severe weather events. The 1995 heatwave resulted in over 700 heat-related deaths, prompting significant improvements in the city’s heat emergency response plan. More recently, in 2023, severe thunderstorms caused widespread damage across the Chicago area, highlighting the importance of preparedness.Learning from past events is crucial for mitigating the impact of future weather emergencies.

Preparing Your Home for Severe Weather

Beyond immediate safety measures, consider these steps to prepare