Sumas, WA Weather Forecast and Current Conditions

WEATHER ALERTS - Special Weather Statement - Flood Watch - Wind Advisory - High Wind Watch

Current Conditions From Nearby Local Station

Cloudy with Light Rain 58°F
Feels Like 58°F  
Humidity 87% Dew Point 54°F Wind SSW 10 MPH Gusts 20 Barometer N/A
Solar Rad 67 w/m2 Visibility 1.2 mi.
Report from a MADIS/MESONET weather station 0.6 mi. SSW of central Sumas
at

Point Forecast at a Glance

MonDec 15
Mon Dec 15: Thunderstorms, High 51F, Low 42F
90%
51
42
TueDec 16
Tue Dec 16: Rain, High 52F, Low 40F
100%
52
40
WedDec 17
Wed Dec 17: Showers, High 46F, Low 38F
90%
46
38
ThuDec 18
Thu Dec 18: Rain, High 45F, Low 35F
100%
45
35
FriDec 19
Fri Dec 19: Rain, High 43F, Low 36F
50%
43
36
SatDec 20
Sat Dec 20: Rain, High 43F, Low 35F
50%
43
35
SunDec 21
Sun Dec 21: Snow, High 43F
50%
43
 

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 52°F to 43°F. Unsettled weather expected with rain on most days, including one day with snow.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 45°F and lows around 34°F.

This Date in Weather History

1945 - A record December snowstorm buried Buffalo, NY, under 36.6 inches of snow, with unofficial totals south of the city ranging up to 70 inches. Travel was brought to a halt by the storm.

More on this and other weather history

Sumas, WA 7 Day Weather Forecast Details

Monday Dec 15

Thunderstorms

Day: Rain and possibly a thunderstorm. Temperature falling to around 51 by 5pm. Breezy, with a southwest wind around 26 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Rain

Night: Rain, mainly after 10pm. Low around 42. South wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Dec 16

Rain

Day: Rain. High near 52. South wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Rain

Night: Rain. Low around 40. Breezy, with a southwest wind 25 to 29 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

Wednesday Dec 17

Showers

Day: Rain before 11am, then showers after 11am. High near 46. Breezy, with a southwest wind 23 to 28 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Showers

Night: Showers before 3am, then rain after 3am. Low around 38. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Dec 18

Rain

Day: Rain. High near 45. Chance of precipitation is 100%.

Rain

Night: Rain. Cloudy, with a low around 35.

Friday Dec 19

Rain

Day: Rain. Cloudy, with a high near 43.

Rain

Night: Rain. Cloudy, with a low around 36.

Saturday Dec 20

Rain

Day: Rain. Cloudy, with a high near 43.

Snow

Night: Rain, possibly mixed with snow. Mostly cloudy, with a low around 35.

Sunday Dec 21

Snow

Day: Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 43.


About Sumas, WA

Sumas (SOO-mas) is a city in Whatcom County, Washington, United States. It had a population of 1,583 as of the 2020 census. Sumas is located adjacent to the Canada–U.S. border and borders the city of Abbotsford, British Columbia. The Sumas–Huntingdon port of entry at the north end of State Route 9 operates 24 hours a day. Sumas shares Nooksack Valley School District with the cities of Nooksack and Everson. It is the northernmost settlement on Washington State Route 9.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.