Winlock, WA Weather Forecast
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| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Patchy Fog | Mostly Cloudy | Partly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Sunny | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Sunny | Mostly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 73°FHi: 23°C | Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C | Lo: 47°FLo: 8°C | Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 236 AM PDT Fri Sep 18 2026 

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Issued: 903 AM PDT Fri Sep 18 2026
Aviation
... Northwest flow aloft will turn westerly tonight as an upper ridge axis just offshore shifts eastward across the area. The low level flow is light onshore. Marine stratus has made its way across the interior this morning but is forecast to burn back toward the coast by 19-20z. VFR conditions will prevail across the interior this afternoon with stratus making a return and likely with greater coverage on Saturday morning.
KSEA...IFR/MVFR stratus currently at the terminal this morning and...
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