Johnson, KS Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Johnson Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Cloudy | Chance of T-Storm | Clearing | Partly Cloudy | Sunny | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Sunny | Chance of T-Storm | Chance of Showers | Chance of Showers |
| Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C |
| POP: 40% | POP: 60% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 132 PM CDT Tue Sep 15 2026 

Johnson Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Johnson Weather Map
Johnson Quick Facts
Johnson Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1200 PM CDT Tue Sep 15 2026
Key Messages
- Strongest cold front of the young fall season arrives Tuesday, with increasing northeast winds, increasing clouds, and falling afternoon temperatures.
- Scattered showers and thunderstorms Tuesday evening through Tuesday night as the front returns north as a warm front.
- South winds quickly return Wednesday through Friday, allowing for the return of unseasonably hot afternoons in the 90s.
- Another cold front will knock temperatures back down this weekend, with afternoon temperatures in t...
Weather World