Weather World
Geff, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Geff Weather Forecast
| THIS AFTERNOON | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  | | | |  |  |  | | | | |
| Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Sunny | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Mostly Clear |
| Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C | Hi: 79°FHi: 26°C Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C Lo: 49°FLo: 9°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 207 PM CDT Fri Oct 23 2026 
Geff Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Geff Weather Map
Geff Quick Facts
Geff Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1246 PM CDT Fri Oct 23 2026
Key Messages
- Patchy daybreak fog is possible each morning.
- Nearly perfect weather with highs 75-80F and lows 45-50F.
Discussion
... Issued at 1245 PM CDT Fri Oct 23 2026
A strong upper level ridge will effectively block all perturbatory flow impediments to our close to perfection 7-day weather forecast. It will keep us pleasantly dry with daily highs in the mid-upper 70s and lows in the mid-upper 40s; a few outlier 80-81F and 50-51F readings are possible.
Patchy daybreak fog cannot be completely rule...