Weather forecast for tomorrowUnion Gap, WA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 64°F
- 39°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphWSW 243°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:24 am PDT
- Sunset: 6:09 pm PDT
- details ▼
On Sunday, in Union Gap, sunshine will prevail for most of the day.
The highest temperature will be an enjoyable 64.4°F, while the lowest predicted temperature is a cold 39.2°F.
Tomorrow's maximum temperature is expected to be a few degrees higher than the common October peak of 60.1°F.
Sunrise will be at 7:24 am and sunset at 6:09 pm; tomorrow's daylight will last for 10h and 46min.
The highest temperature will be an enjoyable 64.4°F, while the lowest predicted temperature is a cold 39.2°F.
Tomorrow's maximum temperature is expected to be a few degrees higher than the common October peak of 60.1°F.
Sunrise will be at 7:24 am and sunset at 6:09 pm; tomorrow's daylight will last for 10h and 46min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 34°C.
Coldest hour: 6 am 34°C.
Chance of precipitation
Highest chance: 3 am 4%.
Hourly weather forecast
- 12 am
- 46°F
- Feels like:43°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 6mphWNW 302°
- Humidity: 65%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 39°F
- Feels like:36°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphWNW 288°
- Humidity: 74%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 37°F
- Feels like:32°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphWNW 283°
- Humidity: 77%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 34°F
- Feels like:28°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphWNW 292°
- Humidity: 81%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:24 am
- 8 am
- 34°F
- Feels like:28°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 5mphWNW 285°
- Humidity: 81%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 48°F
- Feels like:46°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNW 309°
- Humidity: 49%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 57°F
- Feels like:57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphNNW 337°
- Humidity: 34%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphSSE 153°
- Humidity: 27%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 4 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphS 176°
- Humidity: 26%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphSSW 197°
- Humidity: 33%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:09 pm
- 8 pm
- 48°F
- Feels like:48°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphWNW 288°
- Humidity: 49%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 43°F
- Feels like:41°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphW 279°
- Humidity: 56%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of gloomy and sun-filled weather is anticipated.
The temperature will be between a minimum of 32°F and a maximum of 64.4°F. The warmest part of the day is expected around 3 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 60.1°F. The lowest temperature is also similar to October's typical minimum of 42.6°F.
The temperature will be between a minimum of 32°F and a maximum of 64.4°F. The warmest part of the day is expected around 3 pm.
The temperature is expected to be a couple of degrees higher than the average peak in October, which is 60.1°F. The lowest temperature is also similar to October's typical minimum of 42.6°F.
Updated: Oct 18, 2026 @ 01:27:45 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, mainly sunny conditions will dominate the day.
Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
The highest temperature will be slightly warmer than the average maximum of 60.1°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
The highest temperature will be slightly warmer than the average maximum of 60.1°F in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Sunday, in Union Gap, sunrise will be at 7:24 am and sunset at 6:09 pm (PDT).
In Union Gap, the length of the day tomorrow will be 10h and 46min.
