Weather WorldLyon Lake, NY Weather Forecast
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Lyon Lake Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  | |  |  |  |  |  | | | |
| Patchy Fog | Clearing | Sunny | Clearing | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Showers Likely | Showers Likely | Chance of Showers | Chance of Showers |
| Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C |
| POP: 30% | POP: 40% | POP: 80% | POP: 80% | POP: 60% | POP: 60% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 830 AM EDT Thu Aug 20 2026 
Lyon Lake Radar Loop
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Lyon Lake Weather Map
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Lyon Lake Forecast Discussion
Issued: 701 AM EDT Thu Aug 20 2026
Key Messages
1) Multiple rounds of showers over the next several days, with the exception of Friday, will largely bring beneficial rain to the region. However, isolated flash flooding could occur in locations that see repeated, moderate to heavy rainfall rates.
Discussion
... KEY MESSAGE 1...
A weak cold front, currently displaced to our north and west, will slowly drift south and east through the region today, stalling just to our south by later this afternoon. Meanwhi...