Weather forecast for 10 daysSumas, WA
10-day overview
Daily temperatures
Warmest period: Tuesday - Wednesday 55°C.
Coldest day: Wednesday 48°C.
Coldest day: Wednesday 48°C.
Chance of precipitation
Highest chance: today 98%.
Long-term weather forecast
- Monday
- Oct 26, 2026
- min.
- 46°F
Rain
- Precip. probability: 98%
- Precipitation: 0.12"
- Wind: 4mphNNE 31°
- Humidity: 91%
- UV index: 0
- Sunrise: 7:47 am PDT
- Sunset: 5:58 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 50°F
- 43°F
Rain
- Precip. probability: 81%
- Precipitation: 0.59"
- Wind: 7mphSW 222°
- Humidity: 91%
- UV index: 1
- Sunrise: 7:48 am PDT
- Sunset: 5:56 pm PDT
- details ▼
- Wednesday
- Oct 28, 2026
- 48°F
- 39°F
Rain
- Precip. probability: 71%
- Precipitation: 0.31"
- Wind: 5mphE 99°
- Humidity: 85%
- UV index: 1
- Sunrise: 7:50 am PDT
- Sunset: 5:55 pm PDT
- details ▼
- Thursday
- Oct 29, 2026
- 50°F
- 39°F
AM Showers
- Precip. probability: 37%
- Precipitation: 0.04"
- Wind: 8mphNE 48°
- Humidity: 75%
- UV index: 1
- Sunrise: 7:52 am PDT
- Sunset: 5:53 pm PDT
- details ▼
- Friday
- Oct 30, 2026
- 52°F
- 36°F
Mostly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 5mphNE 47°
- Humidity: 70%
- UV index: 1
- Sunrise: 7:53 am PDT
- Sunset: 5:51 pm PDT
- details ▼
- Saturday
- Oct 31, 2026
- 52°F
- 36°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 4mphN 4°
- Humidity: 72%
- UV index: 2
- Sunrise: 7:55 am PDT
- Sunset: 5:49 pm PDT
- details ▼
- Sunday
- Nov 1, 2026
- 52°F
- 36°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 4mphN 355°
- Humidity: 73%
- UV index: 2
- Sunrise: 6:56 am PST
- Sunset: 4:48 pm PST
- details ▼
- Monday
- Nov 2, 2026
- 54°F
- 39°F
Mostly Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 5mphNE 39°
- Humidity: 71%
- UV index: 1
- Sunrise: 6:58 am PST
- Sunset: 4:46 pm PST
- details ▼
- Tuesday
- Nov 3, 2026
- 55°F
- 41°F
Cloudy
- Precip. probability: 13%
- Precipitation: 0"
- Wind: 5mphNE 35°
- Humidity: 71%
- UV index: 1
- Sunrise: 7:00 am PST
- Sunset: 4:45 pm PST
- details ▼
- Wednesday
- Nov 4, 2026
- 55°F
- 41°F
Mostly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 4mphNE 41°
- Humidity: 72%
- UV index: 1
- Sunrise: 7:01 am PST
- Sunset: 4:43 pm PST
- details ▼
Forecasts for the ten-day outlook show that a combination of cloudy and rainy weather is predicted.
Rain is forecasted for Monday through Thursday.
In the coming days, the maximum temperature will range between 48.2°F and 55.4°F, while the lowest temperature will be between 35.6°F and 46.4°F.
With a maximum temperature of 55.4°F, next Tuesday and Wednesday will be the warmest days; Wednesday will be the coldest day, with the highest temperature of 48.2°F.
Rain is forecasted for Monday through Thursday.
In the coming days, the maximum temperature will range between 48.2°F and 55.4°F, while the lowest temperature will be between 35.6°F and 46.4°F.
With a maximum temperature of 55.4°F, next Tuesday and Wednesday will be the warmest days; Wednesday will be the coldest day, with the highest temperature of 48.2°F.
Updated: Oct 26, 2026 @ 22:49:31 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
In Sumas, a combination of cloudy and wet weather is forecasted for the next ten days.
Rain is anticipated on Monday through Thursday in Sumas. With moderate precipitation of 0.59", Tuesday will be the day with the most rainfall.
The maximum temperature will vary between 48.2°F and 55.4°F, while the minimum temperature will be between 35.6°F and 46.4°F.
With a maximum temperature of 55.4°F, next Tuesday and Wednesday will be the warmest days. With a maximum temperature of 48.2°F, Wednesday will be the coldest day.
On Saturday, variable cloud cover will persist, but sunshine will break through.
No, it will not rain on Saturday in Sumas.
On Saturday, the highest temperature in Sumas will be 51.8°F, while the lowest temperature will be 35.6°F.
On Sunday, occasional clouds will pass by, but expect bright spells.
No, it will not rain on Sunday in Sumas.
On Sunday, the maximum temperature will be 51.8°F, while the minimum temperature will be 35.6°F.
