Weather forecast for 10 daysTri-City, OR

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 68°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 6mphN 9°
  • Humidity: 78%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
Today, in Tri-City, clouds and sunshine will alternate throughout the day.
Temperatures are anticipated to range from a maximum of an agreeable 68°F to a minimum of a cool 50°F.
The temperature is anticipated to be slightly warmer than the standard October peak of 63.5°F.
Sunrise was at 7:29 am and sunset will be at 6:27 pm; the daylight will last for 10h and 58min.

Sunday Oct 18, 2026

  • 66°F
  • 48°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 4mphN 8°
  • Humidity: 72%
  • UV index: 4
  • Sunrise: 7:30 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
Tomorrow, on Sunday, gray skies in the morning will gradually clear, leading to a warmer, sunnier afternoon.
Temperature is forecasted to swing from a high of an enjoyable 66.2°F to a low of a frosty 48.2°F.
Tomorrow, the predicted high will correspond with the regular October temperature of 63.5°F.
Sunrise will be at 7:30 am and sunset at 6:25 pm; tomorrow's daylight will last for 10h and 55min.

10-day overview

Daily temperatures

Warmest day: Wednesday 73°C.
Coldest period: Friday - Sunday 61°C.

Chance of precipitation

Highest chance: Sunday 25.10. 41%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 68°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 6mphN 9°
  • Humidity: 78%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 66°F
  • 48°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 4mphN 8°
  • Humidity: 72%
  • UV index: 4
  • Sunrise: 7:30 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 45°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 5mphENE 77°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:32 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphNNE 27°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:33 am PDT
  • Sunset: 6:22 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 5mphNE 52°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:34 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 64°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0.04"
  • Wind: 7mphNNE 12°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:35 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 61°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0.04"
  • Wind: 6mphNNE 12°
  • Humidity: 67%
  • UV index: 3
  • Sunrise: 7:36 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 61°F
  • 45°F
Showers
Showers
  • Precip. probability: 40%
  • Precipitation: 0.28"
  • Wind: 4mphSE 128°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:38 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 43°F
AM Showers
AM Showers
  • Precip. probability: 41%
  • Precipitation: 0.04"
  • Wind: 4mphENE 73°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:39 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 63°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 4mphE 86°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 7:40 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
Models point to a combination of primarily gloomy and occasionally rain-filled and sun-filled weather is predicted.
Rain is expected on Thursday through next Sunday.
Substantial differences in temperature are forecasted in the next ten days. Forecast highs will fluctuate between 60.8°F and 73.4°F, while the minimum temperature is forecast to range between 41°F and 50°F.
Wednesday will be the warmest day, with a maximum temperature of 73.4°F; Friday through next Sunday, with the highest temperature of 60.8°F, will be the coldest days.
Updated: Oct 17, 2026 @ 15:16:32 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, occasional clouds will pass by, but expect bright spells.

Today, the maximum temperature will be 68°F, while the minimum temperature will be 50°F.
The maximum temperature will be a couple of degrees higher than the average highest temperature of 63.5°F in October. The lowest temperature today will be significantly higher than the average low of 40.8°F.

On Saturday, in Tri-City, sunrise was at 7:29 am and sunset will be at 6:27 pm (PDT).

Today, the daylight will last for 10h and 58min.

Tomorrow, early cloud cover is expected, followed by a warm and sunny afternoon.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 48.2°F.
The maximum temperature tomorrow will be in line with the average highest temperature in October. The lowest temperature will be slightly warmer than the average low of 40.8°F.

On Sunday, in Tri-City, sunrise will be at 7:30 am and sunset at 6:25 pm (PDT).

Tomorrow, the daylight will last for 10h and 55min.