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Lyon County, MN Weather Forecast
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Lyon County Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  |  |  | | | | | | |  |
| Chance of Showers | Chance of T-Storm | Mostly Cloudy | Mostly Clear | Sunny | Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Chance of Showers |
| Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C |
| POP: 20% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 749 AM CDT Mon Sep 07 2026 
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Issued: 648 AM CDT Mon Sep 7 2026
Key Messages
- Isolated, non-severe thunderstorms continue across northwestern Iowa through daybreak. Severe weather is not expected, but locally heavy rain has been occurring and may lead to isolated flash flooding.
- Isolated to scattered showers and storms are possible along and north of I-90 this morning into early afternoon. Severe risk is low.
- Additional scattered and possibly severe storms expected late this afternoon across southeastern and south central South Dakota, moving east through toni...