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Sully Lake Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | | |  | |  |  | | | |  |
| Partly Cloudy | Chance of Showers | Partly Cloudy | Chance of Showers | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Partly Sunny |
| Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C |
| POP: 20% | POP: 40% | POP: 90% | POP: 50% | POP: 20% | POP: 20% | POP: 30% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1121 PM CDT Tue Sep 15 2026 
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Issued: 916 PM CDT Tue Sep 15 2026
Key Messages
- Dry conditions expected today before a weak disturbance tracks over the region Wednesday morning into the afternoon, bringing the opportunity for isolated to scattered showers and weak thunderstorms.
- Another round of rainfall is expected late Thursday through Friday. The highest accumulations are expected over eastern South Dakota, where probability to see an inch of rain or more ranges from 40-60%.
Discussion
... Issued at 144 PM CDT Tue Sep 15 2026
As high pressure keeps moving over c...