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Thomas Lake, SD Weather Forecast
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Thomas Lake Weather Forecast
| REST OF TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | |  | | | |  |  |  | | |
| Mostly Cloudy | Patchy Fog | Mostly Cloudy | Partly Cloudy | Partly Sunny | Partly Cloudy | Mostly Cloudy | Chance of T-Storm | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C | Lo: 41°FLo: 5°C |
| POP: 40% | POP: 40% | POP: 20% | POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 921 AM CDT Tue Oct 27 2026 
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Issued: 645 AM CDT Tue Oct 27 2026
Key Messages
- Low clouds and fog, with drizzle possible, will linger over the region this morning with gradually clearing skies over portions of central South Dakota through this afternoon and evening.
- Patchy to areas of fog is possible late tonight through early Wednesday morning. It could be dense at times, especially between the Missouri and James River with a probability of visibility of 1/4th mile or less at 50 to 80%.
- Rain chances return to the region Wednesday, with the highest chances of 6...