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Lincoln Monument, IL Weather Forecast
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Lincoln Monument Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  |  |  |  | | |  | | | |
| Mostly Cloudy | Clearing | Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C |
| POP: 50% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 331 PM CDT Wed Aug 19 2026 
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Issued: 233 PM CDT Wed Aug 19 2026
Key Messages
- Scattered thunderstorms are likely this afternoon into this evening south of I-80, greatest coverage likely south of the Kankakee and Illinois Rivers.
- Storms this afternoon/evening will be capable of locally torrential downpours which could result in localized flash flood threat. In addition, isolated severe storms capable of large hail and damaging winds are possible too.
Discussion
... Issued at 233 PM CDT Wed Aug 19 2026
Through Tonight...
Showers and thu...