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: tomorrow 80%.
Long-term weather forecast
- Monday
- Oct 26, 2026
- min.
- 46°F
Showers
- Precip. probability: 48%
- Precipitation: 0.08"
- Wind: 4mphNE 39°
- Humidity: 94%
- UV index: 0
- Sunrise: 7:47 am PDT
- Sunset: 5:58 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 50°F
- 43°F
Light Rain
- Precip. probability: 80%
- Precipitation: 0.67"
- Wind: 7mphSW 223°
- Humidity: 91%
- UV index: 1
- Sunrise: 7:48 am PDT
- Sunset: 5:56 pm PDT
- details ▼
- Wednesday
- Oct 28, 2026
- 48°F
- 39°F
Showers
- Precip. probability: 62%
- Precipitation: 0.35"
- Wind: 5mphESE 112°
- 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: 34%
- Precipitation: 0.04"
- Wind: 8mphNE 49°
- Humidity: 74%
- 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 ▼
In the days ahead, a combination of overcast and rain-filled weather is anticipated.
Rainfall is forecasted for Monday through Thursday.
In the upcoming period, the highest temperature will vary between 48.2°F and 55.4°F, while the minimum temperature is forecast to range 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; the lowest daytime temperature of the period will be reached on Wednesday, peaking at 48.2°F.
Rainfall is forecasted for Monday through Thursday.
In the upcoming period, the highest temperature will vary between 48.2°F and 55.4°F, while the minimum temperature is forecast to range 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; the lowest daytime temperature of the period will be reached on Wednesday, peaking at 48.2°F.
Updated: Oct 26, 2026 @ 23:58:45 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 gloomy and damp weather is anticipated for the next ten days.
Rainfall is anticipated on Monday through Thursday 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 55.4°F, while the minimum temperature will vary 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 a maximum temperature of 48.2°F.
On Saturday, intermittent cloud cover is expected, allowing for some sunshine.
No, it will not rain on Saturday.
On Saturday, the highest temperature will be 51.8°F, while the lowest temperature will be 35.6°F.
On Sunday, in Sumas, sunlight and clouds will take turns dominating the sky.
No, it will not rain on Sunday.
On Sunday, the maximum temperature will be 51.8°F, while the minimum temperature will be 35.6°F.
