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Northwest Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  | | |  |  |  | | |  |  |
| Partly Cloudy | Partly Cloudy | Chance of Showers | Showers | Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers |
| Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C |
| POP: 40% | POP: 80% | POP: 70% | POP: 50% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 320 PM EDT Thu Sep 17 2026 
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Issued: 1043 PM EDT Thu Sep 17 2026
Key Messages
- A dry period is expected tonight into tomorrow.
- Widespread showers and possible thunderstorms return Saturday into Sunday. Rainfall totals in excess of half an inch are likely, with the potential for 1 inch or more.
Aviation
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Ongoing expansion of high pressure across the northern Great Lakes will continue to advect drier air throughout the low and mid levels during the course of the night and early morning hours. This will sustain a continued gradual erosion of the low clouds across ...