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Lewiston Weather Forecast
| THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 | | |  |  | |  | | |  | | |
| Chance of Showers | Showers | Rain Showers | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Sunny | Mostly Clear |
| Hi: 55°FHi: 13°C | Lo: 49°FLo: 9°C | Hi: 49°FHi: 9°C | Lo: 35°FLo: 2°C | Hi: 45°FHi: 7°C | Hi: 49°FHi: 9°C Lo: 29°FLo: -2°C | Hi: 49°FHi: 9°C Lo: 29°FLo: -2°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C |
| POP: 60% | POP: 90% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1037 AM CST Wed Nov 04 2026 
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Issued: 1129 AM CST Wed Nov 4 2026
Key Messages
- On and off showers continue through Thursday with additional rainfall amounts under 1/2" generally expected.
- Drier and cooler temperatures are expected for Friday and into the weekend with highs in the 40s and 50s. Temperatures will trend above normal into early next week
Discussion
... Issued at 239 AM CST Wed Nov 4 2026
Today - Thursday: On and Off Showers Continue
Continued rainfall is likely through Thursday as an upper-level closed low begins to manifest across the Upper Midwest as ...