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Lyon Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY |
 |  | | | | |  | | | |  |
| Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Sunny | Partly Cloudy | Chance of T-Storm |
| Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 90°FHi: 32°C |
| POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 306 AM CDT Wed Sep 23 2026 
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Issued: 622 AM CDT Wed Sep 23 2026
Key Messages
-Chance of a few showers and thunderstorms this afternoon along and south of the HWY90 corridor
-A weak frontal boundary will move through the region Wednesday night into Thursday morning
-Cooler-feeling and drier airmass will arrive and persist into the weekend. Next significant chance of rain early next week.
Discussion
... (Tonight through next Tuesday) Issued at 1123 PM CDT Tue Sep 22 2026
Satellite imagery and isobar analysis indicates high pressure moving in overhead. This should on...