Corson, SD Weather Forecast
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Corson Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Chance of Showers | Showers | Showers | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Partly Sunny | Showers Likely | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 55°FHi: 13°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C |
| POP: 50% | POP: 100% | POP: 90% | POP: 60% | POP: 50% | POP: 40% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 159 PM CDT Sun Sep 20 2026 

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Issued: 142 PM CDT Sun Sep 20 2026
Key Messages
- Rainfall overspreads most of the area through tonight, gradually ending west to east on Monday.
- Rainfall amounts will average about 0.50" to 1.50" in most locations.
- Below normal temperatures will persist through next week, but gradually become more mild late in the week.
Discussion
... Issued at 141 PM CDT Sun Sep 20 2026
Patchy drizzle remains possible late this afternoon into the evening ahead of the incoming rainfall. The rain will move into the area through the afternoon into tonig...
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