Field School, IL Weather Forecast
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Field School Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Mostly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Chance of T-Storm | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C |
| POP: 20% | POP: 50% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 546 AM CDT Thu Sep 10 2026 

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Issued: 638 AM CDT Thu Sep 10 2026
Key Messages
- Generally tranquil weather with near to slightly above average temperatures expected through the upcoming weekend.
Discussion
... Issued at 218 AM CDT Thu Sep 10 2026
Upper trough seen on water vapor imagery early this morning over South Dakota will move east to the northern IL/southern WI by later this afternoon. Yesterday`s cold front has pushed the moist and unstable air mass south into Missouri and downstate Illinois. As large scale ascent with this trough and the right entrance reg...
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