Weather forecast for 10 daysArlington, WA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 61°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 8mphNNW 331°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
On Sunday, in Arlington, moments of sunshine will break through the patchy clouds.
The maximum temperature will be a comfortable 60.8°F, while the minimum predicted temperature is a frosty 42.8°F.
Tomorrow's peak temperature is anticipated to be relatively higher than October's average high of 56.3°F.
Sunrise will be at 7:33 am and sunset at 6:14 pm; tomorrow's daylight will last for 10h and 41min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 63°C.
Coldest period: Friday - Saturday 55°C.

Chance of precipitation

Highest chance: Friday 39%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 37°F
Clear
Clear
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 2mphN 10°
  • Humidity: 95%
  • UV index: 0
  • Sunrise: 7:31 am PDT
  • Sunset: 6:15 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 61°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 8mphNNW 331°
  • Humidity: 73%
  • UV index: 3
  • Sunrise: 7:33 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 61°F
  • 37°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphWNW 283°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 7:34 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 7mphNW 319°
  • Humidity: 75%
  • UV index: 2
  • Sunrise: 7:36 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 63°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 6mphNW 319°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:37 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 57°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0.12"
  • Wind: 6mphWNW 293°
  • Humidity: 80%
  • UV index: 2
  • Sunrise: 7:39 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 55°F
  • 39°F
AM Showers
AM Showers
  • Precip. probability: 39%
  • Precipitation: 0.08"
  • Wind: 5mphW 279°
  • Humidity: 80%
  • UV index: 2
  • Sunrise: 7:40 am PDT
  • Sunset: 6:04 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 6mphN 350°
  • Humidity: 76%
  • UV index: 2
  • Sunrise: 7:42 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 7mphNNW 341°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:43 am PDT
  • Sunset: 6:01 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 6mphNNW 335°
  • Humidity: 77%
  • UV index: 2
  • Sunrise: 7:45 am PDT
  • Sunset: 5:59 pm PDT
  • ▼
During the ten-day period, primarily gloomy and occasionally dry and sunny and rain-filled weather is expected.
Rainfall is expected on Thursday and Friday.
In the coming days, the highest temperature will range between 55.4°F and 62.6°F, while changes in the overnight low will be barely noticeable, as the minimum temperature is expected to range between 37.4°F and 42.8°F.
Tuesday and Wednesday, with the highest temperature of 62.6°F, will be the warmest days; with a maximum temperature of 55.4°F, Friday and next Saturday will be the coldest days.
Updated: Oct 18, 2026 @ 03:28:37 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 60.8°F, while the minimum temperature will be 42.8°F.
The maximum temperature tomorrow will be relatively higher than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Arlington, sunrise will be at 7:33 am and sunset at 6:14 pm (PDT).

In Arlington, tomorrow, there will be 10h and 41min of daylight.