A dangerous heat wave is set to hit Central Illinois starting Friday, with temperatures climbing into the low 90s and heat index values reaching 95°F to 100°F. This intense heat will be accompanied by high humidity and a risk of strong thunderstorms, particularly over the holiday weekend.
The National Weather Service in Lincoln warns that the heat, combined with potential storms, could impact outdoor activities and travel plans for Independence Day.
Hot and Humid Weather Ahead
The heat will begin to build on Friday and last through the weekend, with highs between 90°F and 92°F. Humidity will rise, making it feel as hot as 100°F in some areas, including Peoria, Decatur, and Champaign. The uncomfortable heat and humidity are expected to peak on Saturday, with temperatures staying in the low 90s, while heat indices climb higher due to the muggy conditions.
Risk of Strong Storms and Lightning
Along with the oppressive heat, the chance of scattered thunderstorms will increase, especially on Saturday night and continuing into Sunday.
Forecasters warn of heavy rainfall and frequent cloud-to-ground lightning, which could disrupt outdoor events, including fireworks displays and travel plans. While storm coverage remains uncertain, there’s a possibility of additional advisories as the weekend approaches, depending on the timing and severity of the storms.
Heat Safety Tips
Given the forecast, residents are urged to take precautions to stay safe during the heat wave:
Stay hydrated: Drink plenty of water, especially if you’re outside for extended periods.
Limit outdoor activities: Try to stay indoors during the hottest parts of the day, typically between noon and 3 p.m.
Check on vulnerable neighbors: The elderly and those with health conditions are at higher risk during extreme heat.
Monitor local alerts: Weather conditions may change rapidly, so keep up with the latest forecasts and warnings.
5-Day Forecast for Central Illinois
| Day | Weather | High Temperature | Low Temperature | Additional Information |
|---|---|---|---|---|
| Today | Partly sunny | 86–89°F | 66–69°F | – |
| Thursday | Mostly sunny | 88–91°F | 69–72°F | – |
| Friday | Hot and humid | 90–92°F | 70–74°F | – |
| Saturday | Humid with late storms | 90–93°F | 72–75°F | – |
| Sunday | 40% chance of thunderstorms, muggy | 86–94°F | – | – |
