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Logan County Weather Forecast
| THIS AFTERNOON | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  | |  |  | |  | | | | |
| Partly Sunny | Clearing | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear | Mostly Sunny | Chance of Showers | Showers | Showers |
| Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C Lo: 65°FLo: 18°C |
| POP: 30% | POP: 30% | POP: 50% | POP: 60% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 PM CDT Fri Sep 11 2026 
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Issued: 1222 PM CDT Fri Sep 11 2026
Key Messages
- Low impact weather will dominate the area through this weekend.
- Periodic chances for thunderstorms will occur next week near a slow moving frontal boundary. South of the front, hot and humid weather will prevail.
Discussion
... Issued at 1222 PM CDT Fri Sep 11 2026
Midday surface analysis indicated high pressure centered over the eastern Great Lakes with ridging extending west into northern and central IL. Aloft, water vapor imagery showed a mid level shortwave tracking northeast near t...