Weather World
Cass School, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Cass School Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  | | |  |  |  |  |  | | |  |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Cloudy |
| Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1212 PM CDT Sun Sep 27 2026 
Cass School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Cass School Weather Map
Cass School Quick Facts
Cass School Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1242 PM CDT Sun Sep 27 2026
Key Messages
- Showers and isolated thunderstorms remain over central South Dakota this afternoon. A couple of stronger to near severe storms will be possible.
- Rain with some embedded weak thunderstorms starts late Sunday night over central SD and will expand east into northeast SD and western MN during the day Monday. This will come to an end from west to east through late Tuesday afternoon. There is a 55-75% chance of 0.5" or more rain along the ND/SD border and along and east of US 281.