Lost Lake, SD Weather Forecast
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Lost Lake Weather Forecast
| REST OF TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Mostly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Sunny | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 942 AM CDT Tue Oct 06 2026 

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Issued: 1022 AM CDT Tue Oct 6 2026
Key Messages
- Above normal temperatures and dry conditions expected through Saturday.
- Pattern change developing during the weekend leading to cooler temperatures next week.
Discussion
... Issued at 1228 AM CDT Tue Oct 6 2026
The front is slowly moving across the James valley and will eventually traverse the rest of the CWA by daylight. Cold advection is rather weak, and BUFKIT profiles indicate there will be an extremely shallow inversion to start the day, with temperatures in the 50s. Thus, with fav...
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