Weather forecast for tomorrowChinook, WA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 63°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphNNE 15°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 7:37 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
Tomorrow, on Sunday, a mix of clouds and blue sky is expected.
Temperature is predicted to swing from a high of a breezy 62.6°F to a low of a brisk 46.4°F.
Tomorrow, the expected high will be relatively higher than the average October maximum of 57.9°F.
Sunrise will be at 7:37 am and sunset at 6:24 pm; tomorrow's daylight will last for 10h and 46min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 43°C.

Chance of precipitation

Highest chance: 3 am - 6 am 7%.

Hourly weather forecast

  • 12 am
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphN 2°
  • Humidity: 87%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 7mphNNE 20°
  • Humidity: 92%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 45°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphNE 35°
  • Humidity: 94%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 4mphNE 46°
  • Humidity: 96%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:37 am
  • 8 am
  • 43°F
  • Feels like:
    39°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 5mphENE 57°
  • Humidity: 97%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 4mphNE 52°
  • Humidity: 78%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphNNE 22°
  • Humidity: 60%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 2 pm
  • 61°F
  • Feels like:
    61°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphN 359°
  • Humidity: 54%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 61°F
  • Feels like:
    61°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphNNW 336°
  • Humidity: 54%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 57°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphNNW 334°
  • Humidity: 68%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:24 pm
  • 8 pm
  • 54°F
  • Feels like:
    52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 8mphNNW 347°
  • Humidity: 75%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    50°F
Cloudy
Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphNNE 14°
  • Humidity: 78%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily dull and occasionally clear weather is expected.
The temperature will be between a minimum of 42.8°F and a maximum of 62.6°F. The warmest part of the day is expected around 3 pm.
The maximum temperature tomorrow will be slightly warmer than October's average high. The lowest temperature is expected to be also moderately lower than the average minimum in October, typically 50.9°F.
Updated: Oct 18, 2026 @ 00:29:40 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, sunlight and clouds will take turns dominating the sky.

Tomorrow, the maximum temperature will be 62.6°F, while the minimum temperature will be 46.4°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 50.9°F.

On Sunday, in Chinook, sunrise will be at 7:37 am and sunset at 6:24 pm (PDT).

In Chinook, the length of the day tomorrow will be 10h and 46min.