Longview, WA Weather Forecast
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| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Partly Sunny | Partly Cloudy | Mostly Sunny | Patchy Fog | Mostly Cloudy | Partly Cloudy | Clearing | Partly Cloudy |
| Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 501 AM PDT Fri Sep 04 2026 

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Issued: 437 AM PDT Fri Sep 4 2026
Discussion
...Friday through Thursday...Radar imagery around 12:30 AM PT on Friday shows rain showers have mostly cleared north of Salem with showers continuing south of Salem. The vertically stacked upper-level and surface closed low pressure system is spinning just off of the central OR coast with a shortwave producing the current showers. Ensemble guidance is in agreement that the core of the upper low has stopped pushing south and will slowly move east and inland into west-central OR today. W...
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