Lake County, SD Weather Forecast
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Lake County Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear |
| Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 354 AM CDT Sun Oct 04 2026 

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Issued: 318 AM CDT Sun Oct 4 2026
Key Messages
- An extended period of warm and dry conditions is expected for much of the upcoming work week.
- Warm temperatures and occasionally gusty afternoon winds could begin leading to fire weather concerns as fine fuels begin to dry out.
Discussion
... Issued at 217 PM CDT Sat Oct 3 2026
REST OF TODAY/TONIGHT: Sprinkles/showers continue to move east this afternoon, mainly along and north of I-90. First round of showers with the initial WAA and the LLJ continues to push east of I-29 this afternoon...
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