Bigneck, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Bigneck Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Mostly Cloudy |
| Lo: 70°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°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: 20% | POP: 40% | POP: 20% | POP: 50% | POP: 70% | POP: 70% | POP: 70% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 608 PM CDT Thu Sep 17 2026 

Bigneck Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Bigneck Weather Map
Bigneck Quick Facts
Bigneck Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 654 PM CDT Thu Sep 17 2026
Key Messages
- Unusually hot and humid conditions will persist through at least Saturday, with the potential to linger into Sunday in some areas. Heat relief is expected early next week.
- A 20-30% chance of showers and weak thunderstorms exists this afternoon and again tomorrow afternoon. However, more substantial (60-80%) rain chances arrive late Saturday through Monday.
Aviation
/00Z TAFS THROUGH 06Z SATURDAY/... Issued at 639 PM CDT Thu Sep 17 2026
This afternoon`s convection has largely dissipated....
Weather World