Johnsonville, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Johnsonville Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Sunny | Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Clear | Mostly Clear | Mostly Sunny |
| Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C Lo: 51°FLo: 11°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1227 PM CDT Sun Oct 04 2026 

Johnsonville Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Johnsonville Weather Map
Johnsonville Quick Facts
Johnsonville Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1240 PM CDT Sun Oct 4 2026
Key Messages
- Near-normal temperatures are expected through the middle of this week, followed by temperatures warming about 5 to 10 degrees above normal by Friday.
- Dry conditions are expected the next several days.
- The next chance of rain will arrive Saturday afternoon and evening, mainly across western Kentucky.
Discussion
... Issued at 1240 PM CDT Sun Oct 4 2026
Dry NW H5 flow and sprawling surface high pressure will keep the weather quiet across the region for the next several days. Temperatures w...
Weather World