Now
- Wind
- 2 mph SSE
- Dew point
- 33°
- Precip chance
- 0%
Today
Patchy fog before 9am. Mostly sunny, with a high near 76. West southwest wind 1 to 5 mph.
Next 24 hours
Full graphs- Now55°
- 5 PM61°
- 6 PM66°
- 7 PM69°
- 8 PM72°
- 9 PM74°
- 10 PM75°
- 11 PM76°
- 12 AM76°
- 1 AM73°
- 2 AM70°
- 3 AM66°
- 4 AM61°
- 5 AM58°
- 6 AM57°
- 7 AM56°
- 8 AM54°
- 9 AM54°
- 10 AM52°
- 11 AM52°
- 12 PM51°
- 1 PM50°
- 2 PM50°
- 3 PM52°
7-day forecast
Today
76°Patchy fog before 9am. Mostly sunny, with a high near 76. West southwest wind 1 to 5 mph.
Tonight
50°Patchy fog after 5am. Partly cloudy, with a low around 50. West wind 0 to 3 mph.
76° forecast high — 6° above normal
- Normal high
- 70°
- Normal low
- 46°
- Record high
- 87°1974
- Record low
- 27°1926
Clearbrook · 6 km away · records 1903–present · normals 1991–2020
1:54 PM
dawn 1:22 PM
2:13 AM
dusk 2:45 AM
12h 20m
noon 8:03 PM
First Quarter
65% 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 | Sun | Mon | Tue | Wed | Thu |
|---|---|---|---|---|---|
| National Weather Servicecanonical | 76° / —° | 74° / 50° | 71° / 50° | 68° / 50° | 68° / 47° |
| Open-Meteo (ECMWF/GFS) | 77° / 47° | 73° / 48° | 68° / 51° | 64° / 50° | 62° / 51° |
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.