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De Kalb Weather Forecast
| THIS AFTERNOON | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  | | | |  | | |  | |  | |
| Mostly Sunny | Clearing | Sunny | Partly Cloudy | Sunny | Clear | Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Chance of Showers | Partly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Hi: 91°FHi: 33°C Lo: 59°FLo: 15°C | Hi: 91°FHi: 33°C Lo: 59°FLo: 15°C | Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C |
| POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 126 PM CDT Sat Sep 26 2026 
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Issued: 659 PM CDT Sat Sep 26 2026
Key Messages
- A dry airmass remains over the region through at least Tuesday, with a gradual warming trend.
- Rain chances return to the area Wednesday and continue into the latter part of the work week.
Discussion
... Issued at 1220 PM CDT Sat Sep 26 2026
Tonight through next Friday...While some fluctuation in these features will exist across the region, high pressure at both the surface and aloft will overall continue to dominate the weather across the forecast area through much of this forecast peri...