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Willow Park South, IL Weather Forecast
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Willow Park South Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
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| Chance of T-Storm | Clear | Chance of Showers | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Cloudy | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Chance of Showers |
| Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 70°FLo: 21°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1101 AM CDT Wed Aug 26 2026 
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Issued: 1216 PM CDT Wed Aug 26 2026
Key Messages
- Potential for strong to severe thunderstorms mid to late afternoon along a cold front east of a Paxton, IL to Valparaiso, IN line.
Discussion
... Issued at 330 AM CDT Wed Aug 26 2026
While a narrow ribbon of warm advective showers/sprinkles managed to develop briefly in northern Illinois early this morning, insufficient MUCAPE locally has prevented more robust showers or isolated storms from developing. Meanwhile, a cluster of thunderstorms in southwest Wisconsin is drifting toward nort...