Warner Lake, SD Weather Forecast
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Warner Lake Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Sunny | Partly Cloudy | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C |
| POP: 40% | POP: 100% | POP: 20% | POP: 40% | POP: 50% | POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 221 AM CDT Mon Sep 14 2026 

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Issued: 1253 AM CDT Mon Sep 14 2026
Key Messages
- Cooler than normal temperatures expected through Wednesday (highs in the 60s to low 70s) with the exception of a brief warmup on Monday (highs in the upper 60s to upper 70s over much of the forecast area). A gradual warming trend will begin mid-week and continue through the weekend.
- Confidence is high on widespread rain and perhaps weak thunderstorms overnight tonight through Monday afternoon. Highest probability of rainfall totals that may exceed one inch (55-60% chance) is along a ...
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