Weather World
Johnson Farm, IL Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Johnson Farm Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
 |  | |  |  |  |  | | | | |
| Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Partly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Hi: 70°FHi: 21°C | Lo: 60°FLo: 16°C | Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C |
| POP: 50% | POP: 20% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 126 PM CDT Sun Sep 20 2026 
Johnson Farm Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Johnson Farm Weather Map
Johnson Farm Quick Facts
Johnson Farm Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 122 PM CDT Sun Sep 20 2026
Key Messages
- The widespread heavy rains are over, though a small upper low will continue to spin near our local area with showers, weak thunderstorms and most certainly cool cloudy conditions. through Tuesday morning.
- Expectations for several beautiful early Fall days are growing for mid week, with highs in the 60s and lows in the 40s-50s.
Aviation
/18Z TAFS THROUGH 18Z MONDAY/... Issued at 1207 PM CDT Sun Sep 20 2026
Persistent MVFR cigs will continue as an upper low and surface low remain nearby t...