Weather WorldLyon County, IA Weather Forecast
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Lyon County Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  | | | | | | | | | |
| Partly Cloudy | Sunny | Mostly Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny |
| Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1238 AM CDT Sat Oct 03 2026 
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Issued: 1111 PM CDT Fri Oct 2 2026
Key Messages
- LOW RAIN CHANCES: A few sprinkles to very light showers are possible mainly along and north of I-90 this morning (<20% chance) and during the late afternoon/evening tomorrow (30% chance). Rainfall totals will remain minimal.
- WINDY AND WARM SATURDAY: Gusty south to southwest winds will build tonight and continue Saturday. Isolated 40 mph winds will be possible, highest over the Buffalo Ridge. This pushes highs towards the 70s.
- COOL, SUNNY SUNDAY: A front passing Saturday night brings cool and comfortable weather with a bit of morning valley fog.
- PROLONGED DRY AND MILD PATTERN: Next week looks...