Sumas, WA Weather
Clear
Bellingham, Bellingham International Airport · 19 mi away · 28 min ago
Now
- Wind
- 9 mph S
- Humidity
- 94%
- Dew point
- 52°
- Pressure
- 30.13"
- Visibility
- 10 mi
- Precip chance
- 12%
Precipitation timing
Precipitation likely beginning around 3 AM, heaviest toward 6 AM, easing overnight, around 0.60".
Tonight
Mostly cloudy, with a low around 46. Southeast wind 1 to 12 mph. New rainfall amounts less than a tenth of an inch possible.
Next 24 hours
Full graphs- Now51°12%
- 6 AM51°10%
- 7 AM50°
- 8 AM49°
- 9 AM48°
- 10 AM47°
- 11 AM47°
- 12 PM46°
- 1 PM46°
- 2 PM46°
- 3 PM46°
- 4 PM47°
- 5 PM49°
- 6 PM51°15%
- 7 PM53°21%
- 8 PM55°22%
- 9 PM56°24%
- 10 PM57°
- 11 PM59°23%
- 12 AM58°13%
- 1 AM58°16%
- 2 AM58°27%
- 3 AM58°75%
- 4 AM56°96%
7-day forecast
Tonight
46°Mostly cloudy, with a low around 46. Southeast wind 1 to 12 mph. New rainfall amounts less than a tenth of an inch possible.
60° forecast high — 9° above normal
- Normal high
- 51°
- Normal low
- 38°
- Record high
- 62°1917
- Record low
- 20°1917
Clearbrook · 6 km away · records 1903–present · normals 1991–2020
3:05 PM
dawn 2:31 PM
12:42 AM
dusk 1:16 AM
9h 37m
noon 7:54 PM
Waning Crescent
8% lit
Model comparison
Daily highs and lows from independent forecast models. The National Weather Service forecast above is what this site reports; these are shown so you can see when the models disagree.
| Model | Sat | Sun | Mon | Tue | Wed |
|---|---|---|---|---|---|
| National Weather Servicecanonical | 60° / 46° | 54° / 48° | 54° / 37° | 57° / 45° | 63° / 50° |
| Open-Meteo (ECMWF/GFS) | 59° / 47° | 53° / 42° | 52° / 39° | 61° / 45° | 63° / 52° |
Highs differing from the NWS forecast by 5° or more are highlighted.
About Sumas’s weather
Sumas, at the Canadian border in northeast Whatcom County, sits in the Nooksack Valley and can experience colder winter temperatures.