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Grahn, KY Weather Forecast
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Grahn Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | |  |  | | | | |  |  | |
| Chance of T-Storm | Mostly Cloudy | Chance of T-Storm | Mostly Sunny | Mostly Clear | Sunny | Clear | Mostly Clear | Mostly Clear | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C |
| POP: 50% | POP: 40% | POP: 30% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 703 PM EDT Sat Sep 12 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 735 PM EDT Sat Sep 12 2026
Key Messages
1) A Flood Watch remains in effect for most of the forecast area until 1 AM EDT tonight.
2) Additional chances for showers and thunderstorms remain forecast for Sunday as a cold front moves in from the northwest.
Discussion
... KEY MESSAGE 1...
15Z upper air analysis depicts a progressive troughing pattern across the eastern half of North America, featuring a longwave trough pivoting into Ontario and a shortwave trough ejecting into the TN River Valley. The latter feature is beginning to...