First Lake, OR Weather Forecast
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| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of Rain | Rain and Snow | Partly Cloudy |
| POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 502 AM PDT Sun Oct 18 2026 

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Issued: 524 AM PDT Sun Oct 18 2026
Discussion
...Now through Saturday...Clear skies and light winds have allowed temperatures to cool off into the 40s throughout the Willamette Valley and into the mid to upper 30s in some of the typical cool spots. The Frost Advisory for the Upper Hood River Valley, Coast Range Valleys and the SW WA Lowlands remains in place as observed temperatures continue to cool into the mid to upper 30s. Despite a cool start to the morning, today should turn out to be a pleasant fall day. Conditions remain dr...
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