Summit, SD Weather Forecast
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| REST OF TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Chance of T-Storm | Clearing | Patchy Fog | Mostly Cloudy | Partly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Clearing | Mostly Clear | Mostly Clear |
| Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C |
| POP: 100% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 922 AM CDT Tue Sep 29 2026 

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Issued: 958 AM CDT Tue Sep 29 2026
Key Messages
- Rain exiting far northeastern SD and west central MN this morning, with drizzle and low clouds remaining into the afternoon.
Discussion
... Issued at 115 AM CDT Tue Sep 29 2026
As of 1 AM CDT, rain continues to move southwest to northeast across the region. Totals so far across central SD have been significantly higher due to convection, with 2-3 inches so far across Corson county. Precipitation is expected to end over central SD this morning and continue over northeastern SD and west c...
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