Weather forecast for tomorrowUnion Creek, OR

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 70°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphSW 236°
  • Humidity: 46%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:22 pm PDT
  • ▼
Tomorrow, blue skies and warm sunshine will define the conditions.
Significant temperature variations are forecasted, soaring to a maximum of a pleasant 69.8°F and descending to a minimum of a cold 41°F.
Tomorrow, it will be warmer, and the temperature will align more with September's typical maximum of 68.5°F.
Sunrise will be at 7:27 am and sunset at 6:22 pm; tomorrow's daylight will last for 10h and 55min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 9 pm 4%.

Hourly weather forecast

  • 12 am
  • 46°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 3mphNE 37°
  • Humidity: 81%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 45°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphENE 57°
  • Humidity: 80%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 41°F
  • Feels like:
    41°F
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphENE 69°
  • Humidity: 82%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphENE 71°
  • Humidity: 79%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:27 am
  • 8 am
  • 41°F
  • Feels like:
    39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 3mphE 80°
  • Humidity: 77%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 54°F
  • Feels like:
    54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphSW 226°
  • Humidity: 56%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 64°F
  • Feels like:
    64°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSW 226°
  • Humidity: 38%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSW 232°
  • Humidity: 30%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphWSW 249°
  • Humidity: 30%
  • Pressure: 29.85"Hg
  • Visibility: 9mi
  • UV index: 1
  • ▼
  • 6 pm
  • 64°F
  • Feels like:
    64°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphW 276°
  • Humidity: 38%
  • Pressure: 29.85"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunset: 6:22 pm
  • 8 pm
  • 55°F
  • Feels like:
    55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 2mphNW 323°
  • Humidity: 59%
  • Pressure: 29.88"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 pm
  • 50°F
  • Feels like:
    50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 1mphENE 61°
  • Humidity: 67%
  • Pressure: 29.91"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of bright and cloudy weather is predicted.
The temperature will be between the lowest temperature of 41°F and the highest temperature of 68°F. The warmest part of the day will be from 2 pm to 5 pm.
The maximum temperature will align more closely with September's average high of 68.5°F than with October's 54.3°F. Tomorrow, the night will be also more alike with September's average minimum of 41.7°F than October's usual value of 34.9°F.
Updated: Oct 18, 2026 @ 04:43:58 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, mostly clear skies and sunshine will create ideal daytime conditions.

Tomorrow, the highest temperature will be 69.8°F, while the lowest temperature will be 41°F.
The highest temperature will be significantly higher than the average maximum of 54.3°F in October. Tomorrow, the lowest temperature will be relatively higher than the average low temperature.

On Sunday, in Union Creek, sunrise will be at 7:27 am and sunset at 6:22 pm (PDT).

In Union Creek, the length of the day tomorrow will be 10h and 55min.