Weather forecast for 10 daysSumas, WA

10-day overview

Daily temperatures

Warmest day: Tuesday 03.11. 57°C.
Coldest day: Wednesday 48°C.

Chance of precipitation

Highest chance: tomorrow 84%.

Long-term weather forecast

  • Monday
  • Oct 26, 2026
  • min.
  • 46°F
Showers
Showers
  • Precip. probability: 56%
  • Precipitation: 0.04"
  • Wind: 2mphN 2°
  • Humidity: 93%
  • UV index: 0
  • Sunrise: 7:47 am PDT
  • Sunset: 5:58 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 50°F
  • 43°F
Rain
Rain
  • Precip. probability: 84%
  • Precipitation: 0.67"
  • Wind: 7mphSW 227°
  • Humidity: 92%
  • UV index: 1
  • Sunrise: 7:48 am PDT
  • Sunset: 5:56 pm PDT
  • ▼
  • Wednesday
  • Oct 28, 2026
  • 48°F
  • 39°F
Showers
Showers
  • Precip. probability: 59%
  • Precipitation: 0.24"
  • Wind: 6mphSE 128°
  • Humidity: 84%
  • UV index: 1
  • Sunrise: 7:50 am PDT
  • Sunset: 5:55 pm PDT
  • ▼
  • Thursday
  • Oct 29, 2026
  • 50°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 8mphNE 51°
  • Humidity: 74%
  • UV index: 1
  • Sunrise: 7:52 am PDT
  • Sunset: 5:53 pm PDT
  • ▼
  • Friday
  • Oct 30, 2026
  • 50°F
  • 34°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 5mphNE 51°
  • Humidity: 74%
  • UV index: 1
  • Sunrise: 7:53 am PDT
  • Sunset: 5:51 pm PDT
  • ▼
  • Saturday
  • Oct 31, 2026
  • 52°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 4mphNNE 20°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:55 am PDT
  • Sunset: 5:49 pm PDT
  • ▼
  • Sunday
  • Nov 1, 2026
  • 52°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 4mphN 10°
  • Humidity: 75%
  • UV index: 2
  • Sunrise: 6:56 am PST
  • Sunset: 4:48 pm PST
  • ▼
  • Monday
  • Nov 2, 2026
  • 54°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 5mphNE 34°
  • Humidity: 72%
  • UV index: 1
  • Sunrise: 6:58 am PST
  • Sunset: 4:46 pm PST
  • ▼
  • Tuesday
  • Nov 3, 2026
  • 57°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 4mphNNE 21°
  • Humidity: 70%
  • UV index: 1
  • Sunrise: 7:00 am PST
  • Sunset: 4:45 pm PST
  • ▼
  • Wednesday
  • Nov 4, 2026
  • 55°F
  • 43°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 5mphNE 39°
  • Humidity: 72%
  • UV index: 1
  • Sunrise: 7:01 am PST
  • Sunset: 4:43 pm PST
  • ▼
Throughout the next ten days, a combination of overcast and rain-soaked weather is predicted.
Rainfall is predicted for Monday through Wednesday.
In the coming days, the highest temperature will range between 48.2°F and 57.2°F, while the fluctuation in night temperatures will be significant, as the minimum temperature is expected to range between 33.8°F and 46.4°F.
Expect the warmest day on next Tuesday, with temperatures peaking at 57.2°F; Wednesday will be the coldest day, with the highest temperature of 48.2°F.
Updated: Oct 27, 2026 @ 04:23:23 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

In Sumas, a combination of gloomy and rainy weather is predicted for the next ten days.

Rainfall is expected on Monday through Wednesday in Sumas. With moderate precipitation of 0.67", Tuesday will be the day with the most rainfall.

The maximum temperature will range between 48.2°F and 57.2°F, as the minimum temperature will vary between 33.8°F and 46.4°F.

The warmest day will be next Tuesday, with a maximum of 57.2°F. With a maximum temperature of 48.2°F, Wednesday will be the coldest day.

On Saturday, sun and clouds will share the sky, creating a partly cloudy day.

No, it will not rain on Saturday.

On Saturday, the maximum temperature will be 51.8°F, while the minimum temperature will be 35.6°F.

On Sunday, occasional cloudiness will be present, but there will still be plenty of sun.

No, it will not rain on Sunday.

On Sunday, the highest temperature will be 51.8°F, while the lowest temperature will be 37.4°F.