Major Lake, SD Weather Forecast
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Major Lake Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Mostly Sunny | Clear | Sunny | Mostly Clear | Clearing | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Sunny | Clear |
| Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C |
| POP: 60% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 332 PM MDT Wed Sep 09 2026 

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Issued: 516 PM MDT Wed Sep 9 2026
Key Messages
- Warm and dry conditions continue this week, with 90s returning to the forecast Thursday and Friday.
- Elevated to near-critical fire weather conditions continue to result; focus remains on Thursday and Friday, although lack of overlap between the lowest humidities and strongest winds support low confidence in meeting Red Flag Warning criteria.
- High confidence in no precipitation until at least Friday evening, if not Saturday evening.
- Next organized storm system remains expected this we...
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