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Koch School Weather Forecast
| THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 | |  |  |  |  |  | | |  |  | |
| Rain | Rain | Partly Sunny | Patchy Fog | Chance of T-Storm | Clearing | Mostly Sunny | Partly Cloudy | Partly Sunny | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 41°FHi: 5°C | Lo: 39°FLo: 4°C | Hi: 51°FHi: 11°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Lo: 49°FLo: 9°C |
| POP: 100% | POP: 100% | POP: 70% | POP: 30% | POP: 30% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 121 PM CDT Mon Oct 26 2026 
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Issued: 1248 PM CDT Mon Oct 26 2026
Key Messages
- Widespread precipitation will push north and east this afternoon and evening as a storm system pulls out of the Rockies into the Northern Plains. This system will exit early Tuesday morning.
- Snow will mix in with the rain later today into tonight across parts of central SD. Minor accumulations (up to an inch) will be possible, especially on grassy surfaces.
Discussion
... Issued at 1246 PM CDT Mon Oct 26 2026
Another day, another model solution for this system. Confidence in timing is h...