Weather World
Fillmore School, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Fillmore School Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  | | | | | |  |  | |
| Sunny | Chance of T-Storm | Chance of T-Storm | Clearing | Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 70°FLo: 21°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C |
| POP: 40% | POP: 30% | POP: 30% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 412 AM CDT Tue Sep 15 2026 
Fillmore School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Fillmore School Weather Map
Fillmore School Quick Facts
Fillmore School Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 152 AM CDT Tue Sep 15 2026
Key Messages
- Showers and thunderstorms will track across central Illinois today. For this afternoon and evening, there is a marginal risk (level 1 of 5) that a few storms could produce isolated damaging wind gusts.
- Repeated heavy rainfall today and Wednesday will bring 0.5 to 1.5 inches of rain across most of the area, with isolated swaths of 2 to 3 inches possible near and north of the Illinois River.
- Hot and humid conditions today will drive afternoon heat indices near 100 degrees, primarily al...