Weather forecast for tomorrow
Union, WA

Weather forecast for tomorrow

Wednesday, Jun 18.

Mostly Sunny
5:13 am

9:13 pm
PDT
Mostly Sunny
68°F / 48°F
  • Wind: 17mph SW
  • Humidity: 60%
  • Precip. probability: 16%
  • Precipitation: 0"
  • UV index: 8
Tomorrow, on Wednesday, June 18, sunny intervals will be long-lasting, with few disruptions.
Expected temperature values will span from a pleasant 68°F down to a chilly 48.2°F.
Expect temperatures to reach June's average high of 68.5°F.
Sunrise will be at 5:13 am and sunset at 9:13 pm; tomorrow's daylight will last for 16h and 1min.

Frequently asked questions

What is the weather forecast for Union for tomorrow?
On Wednesday, in Union, mainly sunny conditions will dominate the day.
What will be the maximum temperature tomorrow in Union?
Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 48.2°F.
The highest temperature will be in line with the average maximum of 68.5°F in June. The lowest temperature will be also in line with the average low of 45.5°F.
When is the sunrise / sunset tomorrow?
On Wednesday, in Union, sunrise will be at 5:13 am and sunset at 9:13 pm (PDT).
How many hours of daylight will Union have tomorrow?
In Union, Washington, tomorrow, there will be 16h and 1min of daylight.

Hourly weather forecast

12 am
  • 57°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 8mph WSW
  • Pressure: 30"Hg
  • Humidity: 84%
  • Precip. probability: 9%
  • Precipitation: 0"
  • Visibility: 10mi
2 am
  • 57°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SW
  • Pressure: 30"Hg
  • Humidity: 89%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 9mi
4 am
  • 55°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SW
  • Pressure: 30"Hg
  • Humidity: 94%
  • Precip. probability: 13%
  • Precipitation: 0"
  • Visibility: 9mi
Sunrise: 5:13 am
6 am
  • 55°F
  • Feels like:
    54°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph SW
  • Pressure: 30"Hg
  • Humidity: 94%
  • Precip. probability: 14%
  • Precipitation: 0"
  • Visibility: 9mi
8 am
  • 59°F
  • Feels like:
    57°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 7mph SW
  • Pressure: 30"Hg
  • Humidity: 85%
  • Precip. probability: 8%
  • Precipitation: 0"
  • Visibility: 9mi
10 am
  • 61°F
  • Feels like:
    59°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph SW
  • Pressure: 30.03"Hg
  • Humidity: 68%
  • Precip. probability: 2%
  • Precipitation: 0"
  • Visibility: 10mi
12 pm
  • 64°F
  • Feels like:
    63°F
Mostly Sunny
Mostly Sunny
  • Wind: 14mph SW
  • Pressure: 30.03"Hg
  • Humidity: 55%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
2 pm
  • 66°F
  • Feels like:
    66°F
Partly Cloudy
Partly Cloudy
  • Wind: 16mph SW
  • Pressure: 30.03"Hg
  • Humidity: 48%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Wind: 16mph WSW
  • Pressure: 30.03"Hg
  • Humidity: 45%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 66°F
  • Feels like:
    66°F
Mostly Sunny
Mostly Sunny
  • Wind: 14mph WSW
  • Pressure: 30.03"Hg
  • Humidity: 45%
  • Precip. probability: 0%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 63°F
  • Feels like:
    61°F
Partly Cloudy
Partly Cloudy
  • Wind: 10mph WSW
  • Pressure: 30.06"Hg
  • Humidity: 56%
  • Precip. probability: 1%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 9:13 pm
10 pm
  • 57°F
  • Feels like:
    55°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 6mph WSW
  • Pressure: 30.09"Hg
  • Humidity: 69%
  • Precip. probability: 3%
  • Precipitation: 0"
  • Visibility: 10mi
Tomorrow, primarily cloud-filled and occasionally clear weather is predicted.
The temperature will vary between a minimum of 53.6°F and a maximum of 68°F. The warmest part of the day is expected around 4 pm.
The highest temperature will be close to June's average maximum of 68.5°F. The lowest temperature is also close to June's typical minimum of 45.5°F.
Updated: Jun 17, 2025 @ 09:20:57 UTC
Published by: Weather U.S. | About Us
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