Stillwell, IL Weather Forecast
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Stillwell Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
| Chance of T-Storm | Chance of T-Storm | Showers | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Clear | Clear | Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 69°FLo: 21°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C |
| POP: 50% | POP: 100% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 952 PM CDT Wed Sep 30 2026 

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Issued: 634 PM CDT Wed Sep 30 2026
Key Messages
- Prolonged period of wet weather continues, with two more rounds of rain through Thursday night. A Flood Watch remains in effect and has been expanded north for excessive rainfall, rising rivers, and potential areal flooding.
- Pleasant early Fall weather this weekend into early next week, with dry conditions and seasonable temperatures.
Aviation
/00Z TAFS THROUGH 00Z FRIDAY/... Issued at 624 PM CDT Wed Sep 30 2026
Predominantly MVFR to IFR conditions expected in low clouds, fog, rain/driz...
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