Weather WorldWest County Park, IL Weather Forecast
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West County Park Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY |
 |  | |  |  |  |  | |  |  |  | |
| Sunny | Clear | Sunny | Partly Cloudy | Partly Sunny | Mostly Cloudy | Showers | Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C Lo: 55°FLo: 13°C |
| POP: 70% | POP: 70% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 637 AM CDT Mon Sep 28 2026 
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Issued: 546 AM CDT Mon Sep 28 2026
Key Messages
- Quiet and Seasonable Early Week: Quiet, mild conditions continue through tonight with highs in the mid-70s and lows near 50. Warm air pushes afternoon temperatures into the 80s for Tuesday and Wednesday.
- Widespread Rain Thursday into Friday: A slow-moving cold front will bring widespread rainfall to central Illinois late Wednesday night through Friday.
- Rainfall Totals and Heavy Rain Potential: Areas north of Interstate 70 have a medium (40-60%) chance of receiving over 1 inch of rain...