Weather forecast for tomorrowTri-City, OR
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 68°F
- 48°F
AM Clouds / PM Sun
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 4mphN 10°
- Humidity: 72%
- UV index: 4
- Sunrise: 7:30 am PDT
- Sunset: 6:25 pm PDT
- details ▼
On Sunday, in Tri-City, expect cloudy weather in the morning, but skies will gradually clear, allowing for plenty of sunshine later.
The temperature scale will run from a maximum of a pleasant 68°F to a minimum of a frosty 48.2°F.
Predicted temperatures are trending moderately higher than October's climate norm 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.
The temperature scale will run from a maximum of a pleasant 68°F to a minimum of a frosty 48.2°F.
Predicted temperatures are trending moderately higher than October's climate norm 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.
Hourly overview
Hourly temperatures
Warmest period: 3 pm - 6 pm 64°C.
Coldest period: 6 am - 9 am 52°C.
Coldest period: 6 am - 9 am 52°C.
Chance of precipitation
Highest chance: 9 am 22%.
Hourly weather forecast
- 12 am
- 55°F
- Feels like:55°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 3mphNNW 337°
- Humidity: 82%
- Pressure: 30.15"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 2 am
- 54°F
- Feels like:54°F
Mostly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 2mphNNW 346°
- Humidity: 85%
- Pressure: 30.12"Hg
- Visibility: 6mi
- UV index: 0
- details ▼
- 4 am
- 54°F
- Feels like:54°F
Mostly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 2mphNNW 341°
- Humidity: 85%
- Pressure: 30.12"Hg
- Visibility: 5mi
- UV index: 0
- details ▼
- 6 am
- 52°F
- Feels like:52°F
Mostly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 2mphN 358°
- Humidity: 85%
- Pressure: 30.09"Hg
- Visibility: 5mi
- UV index: 0
- details ▼
Sunrise: 7:30 am
- 8 am
- 52°F
- Feels like:52°F
Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 2mphN 3°
- Humidity: 86%
- Pressure: 30.09"Hg
- Visibility: 4mi
- UV index: 0
- details ▼
- 10 am
- 52°F
- Feels like:52°F
Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 2mphNE 51°
- Humidity: 87%
- Pressure: 30.09"Hg
- Visibility: 9mi
- UV index: 1
- details ▼
- 12 pm
- 55°F
- Feels like:55°F
Mostly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphNE 34°
- Humidity: 79%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphN 358°
- Humidity: 65%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 66°F
- Feels like:66°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphN 354°
- Humidity: 57%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 3mphNNW 341°
- Humidity: 55%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:25 pm
- 8 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphNW 310°
- Humidity: 65%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 55°F
- Feels like:55°F
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 2mphNW 308°
- Humidity: 72%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, primarily gloomy and occasionally bright weather is forecasted.
The temperature will be between a minimum of 51.8°F and a maximum of 66.2°F. The warmest part of the day will be at 4 pm and 5 pm.
The maximum temperature tomorrow will be slightly warmer than October's average high. Tomorrow, the forecasted low is more alike with September's minimum of 44.8°F than the average in October.
The temperature will be between a minimum of 51.8°F and a maximum of 66.2°F. The warmest part of the day will be at 4 pm and 5 pm.
The maximum temperature tomorrow will be slightly warmer than October's average high. Tomorrow, the forecasted low is more alike with September's minimum of 44.8°F than the average in October.
Updated: Oct 17, 2026 @ 18:28:07 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, patchy morning clouds will clear as the afternoon brings plenty of sunshine.
Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 48.2°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. Tomorrow, the lowest temperature will be also relatively higher than the average low temperature.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. Tomorrow, the lowest temperature will be also relatively higher than the average low temperature.
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.
