Groton, SD Weather Forecast
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Groton Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY |
| Clearing | Chance of Showers | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Partly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C Lo: 51°FLo: 11°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 612 PM CDT Fri Oct 02 2026 

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Issued: 632 PM CDT Fri Oct 2 2026
Key Messages
- Temperatures are expected to be near to slightly above normal this weekend into most of next week.
- There is a 20-50 percent chance for showers on Saturday, otherwise the rest of the weekend through most of next week will be dry.
Discussion
... Issued at 239 PM CDT Fri Oct 2 2026
A northwest flow aloft pattern will persist across the Northern Plains this weekend into most of next week. A series of weak upper level waves will pass through this flow leading to a rollercoaster temperature p...
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