Weather World
Centennial Park, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Centennial Park Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  | | | | |  | | | | |  |
| Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 120 AM CDT Sat Oct 17 2026 
Centennial Park Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Centennial Park Weather Map
Centennial Park Quick Facts
Centennial Park Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1226 AM CDT Sat Oct 17 2026
Key Messages
- Lake effect showers are expected to persist in northwest Indiana through daybreak.
- Coldest night of the season expected tonight with lows near/just below freezing across interior portions of northern IL.
- Dry and mild weather returns Sunday and persists next week.
Discussion
... Issued at 133 PM CDT Fri Oct 16 2026
A seasonably strong and expansive high-pressure system over the Great Plains continues to build eastward into the Midwest this afternoon, following a surface low moving into N...