Hourly Weather Forecast - Sumas, WA

12 AM
41°F
60%
5mph
S
60% Chance of Rain
Humidity
94%
Feels like
38°F
Dew Point
39°F
1 AM
41°F
60%
4mph
SSE
60% Chance of Light Rain
Humidity
94%
Feels like
38°F
Dew Point
39°F
2 AM
40°F
70%
4mph
SSE
70% Chance of Light Rain
Humidity
95%
Feels like
37°F
Dew Point
39°F
3 AM
40°F
70%
4mph
SSE
70% Chance of Light Rain
Humidity
97%
Feels like
37°F
Dew Point
39°F
4 AM
39°F
60%
4mph
SSE
60% Chance of Light Rain
Humidity
98%
Feels like
36°F
Dew Point
38°F
5 AM
39°F
50%
5mph
SSE
50% Chance of Light Rain
Humidity
96%
Feels like
35°F
Dew Point
38°F
6 AM
39°F
40%
6mph
SSE
40% Chance of Light Rain
Humidity
94%
Feels like
35°F
Dew Point
38°F
7 AM
40°F
50%
6mph
SSE
50% Chance of Light Rain
Humidity
92%
Feels like
35°F
Dew Point
38°F
8 AM
40°F
60%
6mph
S
60% Chance of Light Rain
Humidity
91%
Feels like
36°F
Dew Point
38°F
8:00 AM
9 AM
41°F
50%
7mph
SSE
50% Chance of Light Rain
Humidity
90%
Feels like
36°F
Dew Point
38°F
10 AM
42°F
50%
7mph
S
50% Chance of Light Rain
Humidity
88%
Feels like
37°F
Dew Point
39°F
11 AM
43°F
60%
8mph
S
60% Chance of Light Rain
Humidity
86%
Feels like
39°F
Dew Point
39°F
12 PM
44°F
60%
8mph
S
60% Chance of Light Rain
Humidity
85%
Feels like
39°F
Dew Point
40°F
1 PM
44°F
70%
8mph
S
70% Chance of Light Rain
Humidity
86%
Feels like
40°F
Dew Point
40°F
2 PM
44°F
60%
7mph
SSW
60% Chance of Light Rain
Humidity
88%
Feels like
39°F
Dew Point
40°F
3 PM
43°F
70%
7mph
SSW
70% Chance of Light Rain
Humidity
89%
Feels like
39°F
Dew Point
40°F
4 PM
43°F
60%
6mph
SSW
60% Chance of Light Rain
Humidity
89%
Feels like
39°F
Dew Point
40°F
4:13 PM
5 PM
43°F
70%
6mph
SSW
70% Chance of Light Rain
Humidity
90%
Feels like
39°F
Dew Point
40°F
6 PM
42°F
70%
6mph
SSW
70% Chance of Rain
Humidity
93%
Feels like
38°F
Dew Point
40°F
7 PM
41°F
70%
7mph
SSW
70% Chance of Light Rain
Humidity
95%
Feels like
36°F
Dew Point
39°F
8 PM
40°F
60%
7mph
SSW
60% Chance of Light Rain
Humidity
94%
Feels like
35°F
Dew Point
39°F
9 PM
40°F
50%
7mph
SSW
50% Chance of Rain
Humidity
94%
Feels like
35°F
Dew Point
38°F
10 PM
39°F
50%
7mph
SSW
50% Chance of Light Rain
Humidity
94%
Feels like
34°F
Dew Point
38°F
11 PM
39°F
40%
7mph
S
40% Chance of Light Rain
Humidity
94%
Feels like
34°F
Dew Point
37°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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