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Lyon County, IA Weather Forecast
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Lyon County Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  | | | |  |  | |  | | |
| Mostly Cloudy | Chance of T-Storm | Showers | Chance of Showers | Showers | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Chance of Showers | Showers |
| Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C |
| POP: 70% | POP: 90% | POP: 70% | POP: 80% | POP: 90% | POP: 50% | POP: 40% | POP: 80% |
POP = Probability of Precipitation.
Weather Outlook Updated: 844 AM CDT Wed Sep 23 2026 
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Issued: 643 AM CDT Wed Sep 23 2026
Key Messages
- Scattered morning sprinkles to light showers with isolated thunderstorms, mainly west of I-29. Stronger southwest winds develop west of I-29 today, with gusts 30 to 40 mph at times.
- Rain and a few thunderstorms become more widespread tonight into Thursday morning, with rain focusing mainly in northwest Iowa by Thursday afternoon. Main concern will be brief heavy downpours, though flooding is not expected.
- The active weather pattern continues bringing a high chance (>60%) of additiona...