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Lyman County, SD Weather Forecast
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Lyman County Weather Forecast
| REST OF TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 | |  |  |  |  | | |  | | | |
| Showers | Showers | Windy | Clearing | Clear | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Sunny | Clear | Mostly Clear |
| Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 51°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C |
| POP: 70% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1221 AM CDT Thu Oct 15 2026 
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Issued: 1248 AM CDT Thu Oct 15 2026
Key Messages
- Light rain spreads north and east into the region this evening, mainly staying south of Hwy 12.
- Northwest winds of 25 to 35 mph with gusts up to 50 mph are expected to develop Thursday afternoon and evening across central and north central South Dakota. A Wind Advisory has been issued. These winds combined with drier air will also push Grassland Fire Danger into the High category Thursday afternoon.
Discussion
... Issued at 1253 PM CDT Wed Oct 14 2026
There is a lot of uncertainty regar...