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Columbia County Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  |  |  | |  | | | | |
| Sunny | Partly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain | Patchy Fog | Sunny | Clear | Sunny | Partly Cloudy | Chance of Rain | Chance of Rain |
| Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 41°FLo: 5°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C |
| POP: 50% | POP: 20% | POP: 50% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 501 AM PDT Thu Oct 08 2026 
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Issued: 535 AM PDT Thu Oct 8 2026
Aviation
...Through 12z Friday...Largely VFR flying conditions contuse early this morning except for IFR/LIFR cigs/vis with fog or low stratus currently concentrated along the coast and in the southern Willamette Valley. Efficient radiative cooling may allow for additional fog to develop in sheltered valleys, including low to moderate chances, 10-30%, for IFR/LIFR cigs/vis at all other terminals, highest in the Cascade foothills (KTTD) and along the lower Columbia/Cowlitz Valleys (KKLS, KSPB). An...