Weather WorldHillside Park, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Hillside Park Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  |  |  | | |  |  | | | |
| Clearing | Chance of T-Storm | Chance of T-Storm | Showers | Chance of Showers | Chance of T-Storm | Chance of Showers | Mostly Sunny | Mostly Clear | Mostly Clear | Clear | Sunny |
| Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 60°FHi: 16°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C Lo: 39°FLo: 4°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C |
| POP: 20% | POP: 90% | POP: 70% | POP: 50% | POP: 90% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 337 PM CDT Mon Oct 12 2026 
Hillside Park Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Hillside Park Weather Map
Hillside Park Quick Facts
Hillside Park Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1222 PM CDT Mon Oct 12 2026
Key Messages
- Record-breaking heat continues through Tuesday afternoon, with high temperatures reaching the upper 80s to lower 90s.
- A Marginal Risk (level 1 of 5) for severe thunderstorms exists Tuesday night. Some storms will be capable of producing localized damaging wind gusts and hail.
- Unsettled weather Tuesday night through Thursday brings periods of wet weather, with a 60 to 80 percent chance of 1 to 2 inches of event total rainfall.
- A sharp cold front transitions the region to much cooler c...