Weather forecast for tomorrowSumas, WA

Weather forecast for tomorrow

Monday Nov 9, 2026

  • 54°F
  • 46°F
PM Rain
PM Rain
  • Precip. probability: 90%
  • Precipitation: 0.24"
  • Wind: 9mphENE 57°
  • Humidity: 72%
  • UV index: 1
  • Sunrise: 7:09 am PST
  • Sunset: 4:36 pm PST
  • ▼
Tomorrow, on Monday, November 9, expect rainy conditions to develop in the afternoon.
The chance of rainfall is high. However, precipitation will be light. Temperatures will exhibit minor fluctuations, extending from a high of a fresh 53.6°F to a low of a chilly 46.4°F.
A forecast high of 53.6°F brings conditions more familiar to October's average than November's.
Sunrise will be at 7:09 am and sunset at 4:36 pm; tomorrow's daylight will last for 9h and 26min.

Hourly overview

Hourly temperatures

Warmest hour: 9 pm 54°C.
Coldest period: 6 am - 9 am 48°C.

Chance of precipitation

Highest chance: 6 pm 100%.

Hourly weather forecast

  • 12 am
  • 52°F
  • Feels like:
    50°F
Cloudy
Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 6mphS 186°
  • Humidity: 89%
  • Pressure: 30"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 2 am
  • 50°F
  • Feels like:
    48°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 6mphSSE 164°
  • Humidity: 90%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 48°F
  • Feels like:
    48°F
Cloudy
Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 3mphNE 53°
  • Humidity: 94%
  • Pressure: 30.06"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 6 am
  • 48°F
  • Feels like:
    46°F
Cloudy
Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 3mphNE 40°
  • Humidity: 96%
  • Pressure: 30.06"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:09 am
  • 8 am
  • 48°F
  • Feels like:
    46°F
Light Rain
Light Rain
  • Precip. probability: 62%
  • Precipitation: 0.04"
  • Wind: 4mphNE 43°
  • Humidity: 93%
  • Pressure: 30.06"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 10 am
  • 48°F
  • Feels like:
    46°F
Rain
Rain
  • Precip. probability: 76%
  • Precipitation: 0.04"
  • Wind: 6mphENE 58°
  • Humidity: 93%
  • Pressure: 30.06"Hg
  • Visibility: 3mi
  • UV index: 0
  • ▼
  • 12 pm
  • 52°F
  • Feels like:
    48°F
Rain
Rain
  • Precip. probability: 84%
  • Precipitation: 0.04"
  • Wind: 7mphNE 55°
  • Humidity: 86%
  • Pressure: 30.06"Hg
  • Visibility: 5mi
  • UV index: 1
  • ▼
  • 2 pm
  • 52°F
  • Feels like:
    48°F
Rain
Rain
  • Precip. probability: 95%
  • Precipitation: 0.08"
  • Wind: 9mphENE 60°
  • Humidity: 86%
  • Pressure: 30.03"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 4 pm
  • 52°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.12"
  • Wind: 9mphENE 62°
  • Humidity: 85%
  • Pressure: 30"Hg
  • Visibility: 2mi
  • UV index: 0
  • ▼
Sunset: 4:36 pm
  • 6 pm
  • 52°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.12"
  • Wind: 9mphENE 71°
  • Humidity: 89%
  • Pressure: 29.97"Hg
  • Visibility: 2mi
  • UV index: 0
  • ▼
  • 8 pm
  • 54°F
  • Feels like:
    50°F
Rain
Rain
  • Precip. probability: 100%
  • Precipitation: 0.12"
  • Wind: 9mphENE 74°
  • Humidity: 91%
  • Pressure: 29.94"Hg
  • Visibility: 2mi
  • UV index: 0
  • ▼
  • 10 pm
  • 54°F
  • Feels like:
    52°F
Rain
Rain
  • Precip. probability: 94%
  • Precipitation: 0.08"
  • Wind: 8mphENE 65°
  • Humidity: 92%
  • Pressure: 29.94"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, a combination of rain-filled and cloudy weather is anticipated.
Rainfall is predicted from 7 am to 11 pm. The most intense rain will be falling from 4 pm to 8 pm.
The temperature difference throughout the day will be unnoticeable, with a minimum of 48.2°F and a maximum of 53.6°F. The warmest part of the day will be from 8 pm to 11 pm.
The temperature will feel more resembling October's average high than the expected maximum for November. Forecasts show a temperature also more similar to October's average minimum of 42.3°F rather than the November average of 36.5°F.
Updated: Nov 9, 2026 @ 07:23:13 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, afternoon rainfall is expected, making it a wet end to the day.

Light precipitation of 0.24" is forecasted. The chance of rainfall is high at 90%.

Tomorrow, the maximum temperature will be 53.6°F, while the minimum temperature will be 46.4°F.
The maximum temperature will be slightly warmer than the average highest temperature of 45.7°F in November. The lowest temperature will be uncommonly higher than the average low of 36.5°F.

On Monday, in Sumas, sunrise will be at 7:09 am and sunset at 4:36 pm (PST).

Tomorrow, the daylight will last for 9h and 26min.