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Greys Lake, SD Weather Forecast
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Greys Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 | | |  |  |  |  | | |  | | |
| Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of Showers | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 51°FHi: 11°C | Lo: 39°FLo: 4°C | Hi: 51°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 51°FHi: 11°C Lo: 35°FLo: 2°C | Hi: 51°FHi: 11°C Lo: 35°FLo: 2°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C |
| POP: 70% | POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 122 PM CDT Mon Oct 12 2026 
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Issued: 141 PM CDT Mon Oct 12 2026
Key Messages
- Areas of fog to linger and perhaps expand over northeastern South Dakota and western Minnesota later tonight. Some fog may be dense, with visibilities down to a quarter of a mile or lower at times.
- Cooler temperatures will persist this week. Expect highs in the upper 40s to lower 60s. Highly dependent on whether or not the clouds clear off at night, but overnight lows could drop below the freezing mark under clear sky nights.
- Some light showers, possibly with embedded thunder, and mo...