Weather WorldSt. John, KS Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
St. John Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY |
 |  | | | | | | | | | |
| Sunny | Mostly Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Sunny |
| Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 542 AM CDT Tue Oct 06 2026 
St. John Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
St. John Weather Map
St. John Quick Facts
St. John Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 543 AM CDT Tue Oct 6 2026
Key Messages
- Highs in the 80s for the rest of the workweek
- Quiet weather pattern will lead to little to no precipitation chances (less than 10%) through next weekend
Discussion
... Issued at 1129 PM CDT Mon Oct 5 2026
0430Z synopsis shows a large ridge with a 591 dm high located over the western CONUS with northwest flow through the central and northern plains. At the surface a 1008 mb low is located in northeast Colorado and winds are generally south to southwest in the boundary layer at around 10 ...