Weather World
Egan, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Egan Weather Forecast
| EARLY THIS MORNING | TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY |
 | |  |  | | |  | | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Clearing | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 75°FHi: 24°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C |
| POP: 20% | POP: 30% | POP: 40% | POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 256 AM CDT Thu Sep 03 2026 
Egan Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Egan Weather Map
Egan Quick Facts
Egan Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 319 AM CDT Thu Sep 3 2026
Key Messages
- Another hot and humid day is in store today with peak heat index values of 100 to 105F.
- Gusty thunderstorms may impact parts of far northern or northeastern Illinois today. The current probability of occurrence is 30 to 50%.
- Torrential rain-producing storms with a threat for flash flooding may impact far northern Illinois tonight, though confidence is higher that they remain in Wisconsin.
- Temperatures and chances for storms Friday and Saturday are items of low confidence.
- A break in ...