Oahe Dam, SD Weather Forecast
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Oahe Dam Weather Forecast
| TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Mostly Cloudy | Chance of Showers | Partly Cloudy | Partly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear |
| Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C Lo: 35°FLo: 2°C |
| POP: 20% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 922 PM CDT Sun Oct 11 2026 

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Issued: 828 PM CDT Sun Oct 11 2026
Key Messages
- Cooler temperatures will persist in the coming days. Expect highs in the mid 50s to upper 60s through at least the middle of the week. These temperatures are near mid-October normals.
- Some post-frontal showers linger through Monday. Generally less than a tenth of an inch is expected, but localized areas along the North Dakota/South Dakota border may see a tenth to a quarter of an inch of rain. Additional rain chances align with Wednesday/Wednesday night.
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... Issued at 131 PM...
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