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Wdz-Am Decatur, IL Weather Forecast
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Wdz-Am Decatur Weather Forecast
| REST OF TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY | WEDNESDAY |
 |  |  |  | | |  |  | | | |
| Chance of T-Storm | Patchy Fog | Partly Cloudy | Sunny | Chance of T-Storm | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C |
| POP: 90% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1037 PM CDT Wed Aug 19 2026 
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Issued: 639 PM CDT Wed Aug 19 2026
Key Messages
- Scattered showers and thunderstorms are expected through this evening, and into the overnight hours southeast of the IL river. Damaging winds, hail, heavy rains and localized flooding is in play today. A Flood Watch is posted until 1 am tonight from Fulton to Macon to Vermilion counties north where 1-2 inches and locally 2-4 inches of rain possible.
- A persistent northwest flow will keep temperatures and humidity levels in check the next several days, wit...