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Alkali Lake, SD Weather Forecast
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Alkali Lake Weather Forecast
| REST OF TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Chance of Showers | Mostly Clear | Mostly Clear | Partly Sunny | Chance of T-Storm |
| Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C |
| POP: 20% | POP: 50% | POP: 40% | POP: 50% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 937 AM CDT Mon Aug 17 2026 
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Alkali Lake Forecast Discussion
Issued: 643 AM CDT Mon Aug 17 2026
Key Messages
- There is a Slight Risk, level 2 of 5, for isolated to scattered severe storms this afternoon and evening along and east of a line from Sisseton to Murdo. Main threats are large hail, 1 to 2" in diameter, and wind gusts of 60 to 70 mph. A tornado or two is possible south of a line from Murdo to Watertown. Brief heavy rainfall is also possible.
- There is a Marginal Risk, level 1 out 5, for isolated severe storms along and south of a line from Pierre to Broo...