Weather forecast for 10 daysSumas, WA
10-day overview
Daily temperatures
Maximum temperature: 55°C.
Coldest period: Wednesday - Thursday 48°C.
Coldest period: Wednesday - Thursday 48°C.
Chance of precipitation
Highest chance: tomorrow 74%.
Long-term weather forecast
- Monday
- Oct 26, 2026
- 55°F
- 46°F
AM Showers
- Precip. probability: 32%
- Precipitation: 0.04"
- Wind: 5mphNE 51°
- Humidity: 81%
- UV index: 1
- Sunrise: 7:47 am PDT
- Sunset: 5:58 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 50°F
- 41°F
Showers
- Precip. probability: 74%
- Precipitation: 0.63"
- Wind: 7mphSW 219°
- Humidity: 89%
- 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: 0.47"
- Wind: 6mphSE 127°
- Humidity: 86%
- UV index: 1
- Sunrise: 7:50 am PDT
- Sunset: 5:55 pm PDT
- details ▼
- Thursday
- Oct 29, 2026
- 48°F
- 37°F
AM Showers
- Precip. probability: 47%
- Precipitation: 0.08"
- Wind: 7mphNE 50°
- Humidity: 79%
- UV index: 1
- Sunrise: 7:52 am PDT
- Sunset: 5:53 pm PDT
- details ▼
- Friday
- Oct 30, 2026
- 52°F
- 34°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 4mphNNE 31°
- Humidity: 69%
- UV index: 1
- Sunrise: 7:53 am PDT
- Sunset: 5:51 pm PDT
- details ▼
- Saturday
- Oct 31, 2026
- 54°F
- 36°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 5mphN 8°
- Humidity: 69%
- UV index: 2
- Sunrise: 7:55 am PDT
- Sunset: 5:49 pm PDT
- details ▼
- Sunday
- Nov 1, 2026
- 54°F
- 36°F
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 4mphN 6°
- Humidity: 72%
- UV index: 2
- Sunrise: 7:56 am PDT
- Sunset: 5:48 pm PDT
- details ▼
- Monday
- Nov 2, 2026
- 54°F
- 39°F
PM Showers
- Precip. probability: 35%
- Precipitation: 0.2"
- Wind: 5mphNE 40°
- Humidity: 69%
- UV index: 1
- Sunrise: 6:58 am PST
- Sunset: 4:46 pm PST
- details ▼
- Tuesday
- Nov 3, 2026
- 55°F
- 41°F
Mostly Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 6mphNE 45°
- Humidity: 70%
- UV index: 1
- Sunrise: 7:00 am PST
- Sunset: 4:45 pm PST
- details ▼
- Wednesday
- Nov 4, 2026
- 54°F
- 43°F
PM Showers
- Precip. probability: 36%
- Precipitation: 0.16"
- Wind: 6mphENE 61°
- Humidity: 72%
- UV index: 1
- Sunrise: 7:01 am PST
- Sunset: 4:43 pm PST
- details ▼
During the upcoming ten-day period, a combination of rain-soaked and cloudy weather is anticipated.
Rainfall is forecasted for Monday through Thursday, next Monday and Wednesday.
In the upcoming days, the maximum temperature will range between 48.2°F and 55.4°F, while there will be a marked difference in overnight low temperatures, as the overnight lows will vary from 33.8°F to 46.4°F.
With a maximum temperature of 55.4°F, Monday and next Tuesday will be the warmest days; with a maximum temperature of 48.2°F, Wednesday and Thursday will be the coldest days.
Rainfall is forecasted for Monday through Thursday, next Monday and Wednesday.
In the upcoming days, the maximum temperature will range between 48.2°F and 55.4°F, while there will be a marked difference in overnight low temperatures, as the overnight lows will vary from 33.8°F to 46.4°F.
With a maximum temperature of 55.4°F, Monday and next Tuesday will be the warmest days; with a maximum temperature of 48.2°F, Wednesday and Thursday will be the coldest days.
Updated: Oct 26, 2026 @ 11:05:00 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 rain-soaked and cloudy weather is anticipated for the next ten days.
Rainfall is predicted for Monday through Thursday, next Monday and Wednesday in Sumas. With moderate precipitation of 0.63", Tuesday will be the day with the most rainfall.
The maximum temperature will vary between 48.2°F and 55.4°F, as the minimum temperature will be between 33.8°F and 46.4°F.
With a maximum temperature of 55.4°F, Monday and next Tuesday will be the warmest days. With a maximum temperature of 48.2°F, Wednesday and Thursday will be the coldest days.
On Saturday, in Sumas, clouds will come and go, but expect bright periods in between.
No, it will not rain on Saturday.
On Saturday, the highest temperature will be 53.6°F, while the lowest temperature will be 35.6°F.
On Sunday, in Sumas, variable cloud cover will persist, but sunshine will break through.
No, it will not rain on Sunday.
On Sunday, the highest temperature will be 53.6°F, while the lowest temperature will be 35.6°F.
