Weather forecast for tomorrowCascadia, OR

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 66°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphW 270°
  • Humidity: 68%
  • UV index: 3
  • Sunrise: 7:29 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
Tomorrow, on Sunday, October 18, sun-filled skies will remain for most of the day.
The anticipated temperature range extends from a high of a breezy 66.2°F to a low of a chilly 44.6°F.
The maximum temperature for tomorrow will be a few degrees higher than the regular high of 61.5°F in October.
Sunrise will be at 7:29 am and sunset at 6:20 pm; tomorrow's daylight will last for 10h and 52min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest period: 3 am - 6 am 43°C.

Chance of precipitation

Highest chance: 3 am 9%.

Hourly weather forecast

  • 12 am
  • 48°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 1mphENE 65°
  • Humidity: 98%
  • Pressure: 30.15"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 2 am
  • 45°F
  • Feels like:
    45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 1mphE 87°
  • Humidity: 99%
  • Pressure: 30.15"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
  • 4 am
  • 43°F
  • Feels like:
    43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 1mphE 101°
  • Humidity: 100%
  • Pressure: 30.12"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 6 am
  • 43°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 1mphE 90°
  • Humidity: 98%
  • Pressure: 30.12"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:29 am
  • 8 am
  • 45°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 1mphE 88°
  • Humidity: 96%
  • Pressure: 30.09"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 10 am
  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphSW 225°
  • Humidity: 79%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    59°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphW 274°
  • Humidity: 64%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphW 281°
  • Humidity: 55%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 5mphW 276°
  • Humidity: 52%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphW 276°
  • Humidity: 55%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:20 pm
  • 8 pm
  • 54°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 1mphSW 221°
  • Humidity: 73%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphSE 124°
  • Humidity: 79%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, primarily overcast and occasionally bright weather is predicted.
The temperature will vary between the lowest temperature of 42.8°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The high will be relatively higher than the normal maximum of 61.5°F for October. The night temperature will be also alike with the standard October low of 42.8°F.
Updated: Oct 17, 2026 @ 20:02:43 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, a glowing sky and minimal clouds are expected.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 44.6°F.
The maximum temperature tomorrow will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Cascadia, sunrise will be at 7:29 am and sunset at 6:20 pm (PDT).

Tomorrow, the daylight will last for 10h and 52min.