7-Day Forecast 49°N 122.27°W (Text-Only)
NWS Forecast for: Sumas WA
Issued by: National Weather Service Seattle, WA
Last Update: 8:34 am PDT Jul 13, 2025


Today: Sunny, with a high near 85. Southwest wind 7 to 13 mph.

Tonight: Partly cloudy, with a low around 62. South southwest wind 7 to 11 mph.

Monday: Mostly cloudy, then gradually becoming sunny, with a high near 81. West wind 6 to 8 mph.

Monday Night: Mostly clear, with a low around 61. West northwest wind 5 to 8 mph becoming northeast after midnight.

Tuesday: Sunny, with a high near 91. Northeast wind 5 to 9 mph becoming north northwest in the afternoon.

Tuesday Night: Mostly clear, with a low around 62.

Wednesday: Sunny, with a high near 90.

Wednesday Night: Mostly clear, with a low around 61.

Thursday: Sunny, with a high near 86.

Thursday Night: Mostly clear, with a low around 60.

Friday: Mostly sunny, with a high near 82.

Friday Night: Partly cloudy, with a low around 58.

Saturday: Mostly sunny, with a high near 79.



Sumas WA
 49°N 122.27°W (Elev. 49 ft)

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