National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Abbotsford International Airport (CYXX)

Lat: 49.03333°NLon: 122.36667°WElev: 177.0ft.

Clear

48°F

9°C

Humidity 70%
Wind Speed NNE 6 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 39°F (4°C)
Visibility 15.00 mi
Wind Chill45°F (7°C)
Last update 19 Apr 03:00 AM PDT
Extended Forecast for

Sumas WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. East wind around 6 mph.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 75. Northeast wind 5 to 8 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50. Calm wind becoming southwest around 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 75. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain after 11am. Partly sunny, with a high near 67.

    High: 67 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain. Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. East wind around 6 mph.
Sunday
Mostly sunny, with a high near 75. Northeast wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 50. Calm wind becoming southwest around 5 mph.
Monday
Partly sunny, with a high near 75. Light and variable wind becoming west around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
A 40 percent chance of rain after 11am. Partly sunny, with a high near 67.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 51.
Wednesday
A chance of rain. Mostly cloudy, with a high near 63.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sumas WA
 49°N 122.27°W (Elev. 49 ft)
Last Update:
11:26 pm PDT Apr 18, 2026
Forecast Valid:
3am PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation