Weather forecast for 10 daysSumas, WA
10-day overview
Daily temperatures
Warmest day: Tuesday 03.11. 57°C.
Coldest period: Wednesday - Thursday 48°C.
Coldest period: Wednesday - Thursday 48°C.
Chance of precipitation
Highest chance: Wednesday 75%.
Long-term weather forecast
- Monday
- Oct 26, 2026
- 55°F
- 46°F
AM Showers
- Precip. probability: 35%
- Precipitation: 0.04"
- Wind: 4mphESE 108°
- Humidity: 79%
- UV index: 1
- Sunrise: 7:47 am PDT
- Sunset: 5:58 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 50°F
- 43°F
Showers
- Precip. probability: 69%
- Precipitation: 0.63"
- Wind: 7mphSW 220°
- Humidity: 90%
- UV index: 1
- Sunrise: 7:48 am PDT
- Sunset: 5:56 pm PDT
- details ▼
- Wednesday
- Oct 28, 2026
- 48°F
- 41°F
Rain
- Precip. probability: 75%
- Precipitation: 0.39"
- Wind: 6mphSE 130°
- 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: 45%
- Precipitation: 0.08"
- Wind: 7mphNE 50°
- Humidity: 78%
- 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 28°
- Humidity: 70%
- 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: 12%
- Precipitation: 0"
- Wind: 4mphN 0°
- Humidity: 72%
- UV index: 2
- Sunrise: 7:55 am PDT
- Sunset: 5:49 pm PDT
- details ▼
- Sunday
- Nov 1, 2026
- 54°F
- 39°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 4mphN 2°
- Humidity: 74%
- UV index: 2
- Sunrise: 7:56 am PDT
- Sunset: 5:48 pm PDT
- details ▼
- Monday
- Nov 2, 2026
- 54°F
- 41°F
PM Showers
- Precip. probability: 33%
- Precipitation: 0.24"
- Wind: 5mphNE 37°
- Humidity: 71%
- UV index: 1
- Sunrise: 6:58 am PST
- Sunset: 4:46 pm PST
- details ▼
- Tuesday
- Nov 3, 2026
- 57°F
- 41°F
Mostly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 5mphNE 49°
- 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: 24%
- Precipitation: 0.04"
- Wind: 6mphENE 59°
- Humidity: 70%
- 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 overcast weather is forecasted.
Rainfall is anticipated on Monday through Thursday, next Monday and Wednesday.
In the upcoming days, the highest temperature will vary between 48.2°F and 57.2°F, while the lowest nightly temperature differences will be quite pronounced, as the overnight lows will vary from 33.8°F to 46.4°F.
Next Tuesday is expected to be the warmest, reaching up to 57.2°F; the coldest days will be Wednesday and Thursday, with a maximum of 48.2°F.
Rainfall is anticipated on Monday through Thursday, next Monday and Wednesday.
In the upcoming days, the highest temperature will vary between 48.2°F and 57.2°F, while the lowest nightly temperature differences will be quite pronounced, as the overnight lows will vary from 33.8°F to 46.4°F.
Next Tuesday is expected to be the warmest, reaching up to 57.2°F; the coldest days will be Wednesday and Thursday, with a maximum of 48.2°F.
Updated: Oct 26, 2026 @ 14:49:43 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 damp and cloud-filled weather is predicted for the next ten days.
Rainfall is anticipated on 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 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 and Thursday will be the coldest days.
On Saturday, expect a mix of sun and clouds throughout the day.
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, changing cloud patterns will allow for periods of sunshine.
No, it will not rain on Sunday.
On Sunday, the maximum temperature will be 53.6°F, while the minimum temperature will be 39.2°F.
