Monroe, OR Weather Forecast
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Monroe Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
| Chance of Showers | Chance of T-Storm | Clearing | Patchy Fog | Mostly Clear | Sunny | Clear | Sunny | Clear | Sunny | Mostly Clear | Mostly Sunny |
| Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 85°FHi: 29°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C |
| POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 AM PDT Sun Sep 06 2026 

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Issued: 1249 AM PDT Sun Sep 6 2026
Discussion
...Sunday through Saturday...Ensemble guidance is in good agreement that today will be the last day the persistent upper low pressure system churns over the PacNW before it finally moves east of the Cascades tonight into eastern Oregon, eastern Washington, and western Idaho. This low will bring continued chances for showers and isolated thunderstorms today across most of northwestern Oregon and southwestern Washington before chances decrease from west to east this evening as the low pr...
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