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As of 05:45 PDT

Weather in Sumas, WA

41°Current weather

Sumas, Sunday, 18 October, 05:45

Partly cloudy. Feels like 39°. High 61°, low 41°.

Pressure30.21 inHg
Wind3.4 mph N
Humidity100%
Visibility2.0 mi
Dew point41°

Two-week outlook for Sumas, WA: week one averages a high of 59.5° and week two 55°, so week two runs 4.4° cooler than week one. Around 1.2 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, October 18: 61°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 18 – October 24)59.5°43.8°0.3 in / 1 d—
2nd (October 25 – October 31)55°43.8°0.9 in / 3 d—

Weekend weather

Sun, October 18
Overcast
61°41°
no precip.
Sat, October 24
Overcast
57°40°
no precip.
Sun, October 25
Light rain
50°43°
0.05 in
Sat, October 31
Rain
54°42°
0.58 in
Mon, 1963° / 48°0Overcast
63 °Overcast

Sumas, Monday, 19 October

Overcast. High 63°, low 48°.

Pressure29.97 inHg
Wind1.5 mph SW
Humidity80%
Visibility2.7 mi
Dew point49°
Tue, 2064° / 43°0Clear
64 °Clear

Sumas, Tuesday, 20 October

Clear. High 64°, low 43°.

Pressure30.06 inHg
Wind2.2 mph NW
Humidity72%
Visibility6.2 mi
Dew point49°
Wed, 2165° / 47°0Clear
65 °Clear

Sumas, Wednesday, 21 October

Clear. High 65°, low 47°.

Pressure29.94 inHg
Wind1 mph SW
Humidity69%
Visibility6.2 mi
Dew point47°
Thu, 2255° / 46°0.02Light rain
55 °Light rain

Sumas, Thursday, 22 October

Light rain. High 55°, low 46°.

Pressure29.97 inHg
Wind8.2 mph SW
Humidity88%
Visibility—
Dew point49°
Fri, 2351° / 42°0.31Rain
51 °Rain

Sumas, Friday, 23 October

Rain. High 51°, low 42°.

Pressure30.24 inHg
Wind4 mph SW
Humidity90%
Visibility—
Dew point46°
Sat, 2457° / 40°0Overcast
57 °Overcast

Sumas, Saturday, 24 October

Overcast. High 57°, low 40°.

Pressure30.39 inHg
Wind3.5 mph E
Humidity48%
Visibility—
Dew point32°
Sun, 2550° / 43°0.05Light rain
50 °Light rain

Sumas, Sunday, 25 October

Light rain. High 50°, low 43°.

Pressure30.27 inHg
Wind3 mph NE
Humidity86%
Visibility—
Dew point45°
Mon, 2661° / 43°0Overcast
61 °Overcast

Sumas, Monday, 26 October

Overcast. High 61°, low 43°.

Pressure30.09 inHg
Wind4.5 mph N
Humidity68%
Visibility—
Dew point42°
Tue, 2755° / 42°0Overcast
55 °Overcast

Sumas, Tuesday, 27 October

Overcast. High 55°, low 42°.

Pressure30.06 inHg
Wind3.2 mph E
Humidity55%
Visibility—
Dew point36°
Wed, 2857° / 42°0Mostly clear
57 °Mostly clear

Sumas, Wednesday, 28 October

Mostly clear. High 57°, low 42°.

Pressure30.18 inHg
Wind2.3 mph NW
Humidity64%
Visibility—
Dew point40°
Thu, 2954° / 44°0Light rain
54 °Light rain

Sumas, Thursday, 29 October

Light rain. High 54°, low 44°.

Pressure30.12 inHg
Wind8.1 mph S
Humidity80%
Visibility—
Dew point43°
Fri, 3054° / 50°0.24Rain
54 °Rain

Sumas, Friday, 30 October

Rain. High 54°, low 50°.

Pressure29.97 inHg
Wind6.4 mph S
Humidity68%
Visibility—
Dew point43°
Sat, 3154° / 42°0.58Rain
54 °Rain

Sumas, Saturday, 31 October

Rain. High 54°, low 42°.

Pressure29.71 inHg
Wind14.4 mph SW
Humidity93%
Visibility—
Dew point51°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Sumas, WA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.