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Culvert Lake Weather Forecast
| REST OF TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
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| Chance of T-Storm | Chance of T-Storm | Patchy Fog | Partly Sunny | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Showers | Clearing | Mostly Clear | Mostly Clear | Partly Sunny |
| Lo: 60°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 59°FHi: 15°C Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C |
| POP: 50% | POP: 80% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 122 AM CDT Tue Sep 29 2026 
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Issued: 117 AM CDT Tue Sep 29 2026
Key Messages
- Rain will move east and be concentrated mainly over northeastern SD and west central MN today, exiting this afternoon.
- The chance of an additional half inch through the rest of the day is 60-80% east of a line from Eureka to Gettysburg to Huron. Heavy rain is possible with any stronger storms over mainly eastern SD, with localized flooding possible.
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...